{"id":5749,"date":"2025-12-24T03:55:51","date_gmt":"2025-12-24T03:55:51","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5749"},"modified":"2025-12-24T03:55:51","modified_gmt":"2025-12-24T03:55:51","slug":"gb-t-5280-2002-self-tapping-screws-thread-standard","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/hi\/blog\/gb-t-5280-2002-self-tapping-screws-thread-standard\/","title":{"rendered":"GB\/T 5280-2002 \u0938\u0947\u0932\u094d\u092b-\u091f\u0948\u092a\u093f\u0902\u0917 \u0938\u094d\u0915\u094d\u0930\u0942 \u0925\u094d\u0930\u0947\u0921 \u092e\u093e\u0928\u0915"},"content":{"rendered":"<h2 style=\"font-size: 24px; margin-top: 40px;\">\u092e\u093e\u0928\u0915 \u0915\u093e \u092a\u0930\u093f\u091a\u092f<\/h2>\n<p style=\"margin-bottom: 20px;\">GB\/T 5280-2002 \u092e\u093e\u0928\u0915 ST1.5 \u0938\u0947 ST9.5 \u0924\u0915 \u0915\u0947 \u0925\u094d\u0930\u0947\u0921 \u0938\u093e\u0907\u091c\u093c \u0935\u093e\u0932\u0947 \u0938\u0947\u0932\u094d\u092b-\u091f\u0948\u092a\u093f\u0902\u0917 \u0938\u094d\u0915\u094d\u0930\u0942 (\u0936\u0940\u091f \u092e\u0947\u091f\u0932 \u0938\u094d\u0915\u094d\u0930\u0942) \u0915\u0947 \u0932\u093f\u090f \u0925\u094d\u0930\u0947\u0921 \u0915\u0947 \u0906\u092f\u093e\u092e \u0914\u0930 \u090f\u0902\u0921 \u091f\u093e\u0907\u092a \u0928\u093f\u0930\u094d\u0926\u093f\u0937\u094d\u091f \u0915\u0930\u0924\u093e \u0939\u0948\u0964 \u092f\u0939 \u092e\u093e\u0928\u0915 \u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u092e\u0947\u0902 \u090f\u0915\u0930\u0942\u092a\u0924\u093e \u0938\u0941\u0928\u093f\u0936\u094d\u091a\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948, \u091c\u093f\u0938\u0938\u0947 \u092c\u093f\u0928\u093e \u092a\u0939\u0932\u0947 \u0938\u0947 \u091b\u0947\u0926 \u0915\u093f\u090f \u0927\u093e\u0924\u0941 \u0915\u0940 \u091a\u093e\u0926\u0930\u094b\u0902 \u091c\u0948\u0938\u0940 \u0938\u093e\u092e\u0917\u094d\u0930\u093f\u092f\u094b\u0902 \u092e\u0947\u0902 \u0935\u093f\u0936\u094d\u0935\u0938\u0928\u0940\u092f \u092b\u093e\u0938\u094d\u091f\u0928\u093f\u0902\u0917 \u0938\u0902\u092d\u0935 \u0939\u094b \u092a\u093e\u0924\u0940 \u0939\u0948\u0964<\/p>\n<p style=\"margin-bottom: 20px;\">\u092f\u093e\u0902\u0924\u094d\u0930\u093f\u0915 \u092b\u093e\u0938\u094d\u091f\u0928\u093f\u0902\u0917 \u092e\u0947\u0902 \u090f\u0915 \u092a\u094d\u0930\u092e\u0941\u0916 \u0938\u0902\u0926\u0930\u094d\u092d \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902, \u092f\u0939 \u091f\u093e\u0907\u092a C, F \u0914\u0930 R \u0915\u0947 \u0932\u093f\u090f \u092a\u093f\u091a, \u092a\u094d\u0930\u092e\u0941\u0916 \u0914\u0930 \u0932\u0918\u0941 \u0935\u094d\u092f\u093e\u0938, \u0914\u0930 \u0925\u094d\u0930\u0947\u0921 \u0932\u0902\u092c\u093e\u0908 \u091c\u0948\u0938\u0947 \u092e\u093e\u092a\u0926\u0902\u0921\u094b\u0902 \u0915\u094b \u092a\u0930\u093f\u092d\u093e\u0937\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948, \u091c\u093f\u0938\u0938\u0947 \u0911\u091f\u094b\u092e\u094b\u091f\u093f\u0935, \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928\u093f\u0915\u094d\u0938 \u0914\u0930 \u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u0938\u0939\u093f\u0924 \u0935\u093f\u092d\u093f\u0928\u094d\u0928 \u0909\u0926\u094d\u092f\u094b\u0917\u094b\u0902 \u092e\u0947\u0902 \u0905\u0928\u0941\u0915\u0942\u0932\u0924\u093e \u0914\u0930 \u092a\u094d\u0930\u0926\u0930\u094d\u0936\u0928 \u0915\u094b \u092c\u0922\u093c\u093e\u0935\u093e \u092e\u093f\u0932\u0924\u093e \u0939\u0948\u0964 \u092f\u0939 \u091a\u0940\u0928\u0940 \u092e\u093e\u0928\u0915\u094b\u0902 \u0915\u0940 \u0935\u093f\u0936\u093f\u0937\u094d\u091f \u0906\u0935\u0936\u094d\u092f\u0915\u0924\u093e\u0913\u0902 \u0915\u094b \u092a\u0942\u0930\u093e \u0915\u0930\u0924\u0947 \u0939\u0941\u090f \u0905\u0902\u0924\u0930\u094d\u0930\u093e\u0937\u094d\u091f\u094d\u0930\u0940\u092f \u092a\u094d\u0930\u0925\u093e\u0913\u0902 \u0915\u0947 \u0905\u0928\u0941\u0930\u0942\u092a \u0939\u0948\u0964<\/p>\n<ul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 30px;\">\n<li>\u0926\u093e\u092f\u0930\u093e: \u092e\u0940\u091f\u094d\u0930\u093f\u0915 \u0906\u0915\u093e\u0930 \u0915\u0947 \u0938\u0947\u0932\u094d\u092b-\u091f\u0948\u092a\u093f\u0902\u0917 \u0938\u094d\u0915\u094d\u0930\u0942 \u0915\u0947 \u0932\u093f\u090f \u0925\u094d\u0930\u0947\u0921 \u092a\u094d\u0930\u094b\u092b\u093e\u0907\u0932 \u0915\u094b \u0915\u0935\u0930 \u0915\u0930\u0924\u093e \u0939\u0948\u0964<\/li>\n<li>\u092e\u0939\u0924\u094d\u0935: \u092f\u0939 \u0938\u0947\u0932\u094d\u092b-\u091f\u0948\u092a\u093f\u0902\u0917 \u0915\u0940 \u0926\u0915\u094d\u0937\u0924\u093e \u0914\u0930 \u0925\u094d\u0930\u0947\u0921 \u0915\u0940 \u0905\u0916\u0902\u0921\u0924\u093e \u0938\u0941\u0928\u093f\u0936\u094d\u091a\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948\u0964<\/li>\n<li>\u0905\u092a\u0921\u0947\u091f: \u092c\u093e\u0926 \u0915\u0947 \u0938\u0902\u0938\u094d\u0915\u0930\u0923\u094b\u0902 \u0926\u094d\u0935\u093e\u0930\u093e \u092a\u094d\u0930\u0924\u093f\u0938\u094d\u0925\u093e\u092a\u093f\u0924 \u0915\u0930 \u0926\u093f\u092f\u093e \u0917\u092f\u093e \u0939\u0948, \u0932\u0947\u0915\u093f\u0928 \u092a\u0941\u0930\u093e\u0928\u0947 \u0921\u093f\u091c\u093c\u093e\u0907\u0928\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u092e\u0942\u0932\u092d\u0942\u0924 \u0939\u0948\u0964<\/li>\n<\/ul>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">\u0927\u093e\u0917\u0947 \u0915\u0940 \u0935\u093f\u0936\u093f\u0937\u094d\u091f\u0924\u093e\u090f\u0901 \u0914\u0930 \u0906\u092f\u093e\u092e<\/h2>\n<p style=\"margin-bottom: 20px;\">\u092f\u0939 \u092e\u093e\u0928\u0915 \u0935\u093f\u092d\u093f\u0928\u094d\u0928 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 \u0938\u093f\u0930\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u0925\u094d\u0930\u0947\u0921 \u091c\u094d\u092f\u093e\u092e\u093f\u0924\u093f \u0915\u094b \u092a\u0930\u093f\u092d\u093e\u0937\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948, \u091c\u093f\u0938\u092e\u0947\u0902 \u092e\u0941\u0916\u094d\u092f \u0935\u094d\u092f\u093e\u0938 (d1), \u092a\u093f\u091a \u0935\u094d\u092f\u093e\u0938 (d2), \u0932\u0918\u0941 \u0935\u094d\u092f\u093e\u0938 (d3), \u091a\u0948\u092e\u094d\u092b\u0930 (c), \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e (r) \u0914\u0930 \u0938\u0902\u0926\u0930\u094d\u092d \u0932\u0902\u092c\u093e\u0908 (y) \u0936\u093e\u092e\u093f\u0932 \u0939\u0948\u0902\u0964 \u092f\u0947 \u0909\u091a\u093f\u0924 \u0925\u094d\u0930\u0947\u0921 \u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u0914\u0930 \u091c\u0941\u0921\u093c\u093e\u0935 \u0938\u0941\u0928\u093f\u0936\u094d\u091a\u093f\u0924 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902, \u091c\u093f\u0938\u0938\u0947 \u0938\u094d\u0925\u093e\u092a\u0928\u093e \u0915\u0947 \u0926\u094c\u0930\u093e\u0928 \u0938\u093e\u092e\u0917\u094d\u0930\u0940 \u0915\u0940 \u0915\u094d\u0937\u0924\u093f \u0915\u092e \u0938\u0947 \u0915\u092e \u0939\u094b \u091c\u093e\u0924\u0940 \u0939\u0948\u0964<\/p>\n<p style=\"margin-bottom: 20px;\">\u092e\u0941\u0916\u094d\u092f \u092e\u093e\u092a\u0926\u0902\u0921\u094b\u0902 \u092e\u0947\u0902 \u092a\u093f\u091a \u0936\u093e\u092e\u093f\u0932 \u0939\u0948, \u091c\u094b ST1.5 \u0915\u0947 \u0932\u093f\u090f 0.5 \u092e\u093f\u092e\u0940 \u0938\u0947 \u0932\u0947\u0915\u0930 \u092c\u0921\u093c\u0947 \u0906\u0915\u093e\u0930 \u0915\u0947 \u0932\u093f\u090f 2.1 \u092e\u093f\u092e\u0940 \u0924\u0915 \u092d\u093f\u0928\u094d\u0928 \u0939\u094b\u0924\u0940 \u0939\u0948, \u0914\u0930 \u0935\u093f\u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u092d\u093f\u0928\u094d\u0928\u0924\u093e\u0913\u0902 \u0915\u094b \u0938\u092e\u093e\u092f\u094b\u091c\u093f\u0924 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0905\u0927\u093f\u0915\u0924\u092e\/\u0928\u094d\u092f\u0942\u0928\u0924\u092e \u092e\u093e\u0928\u094b\u0902 \u092e\u0947\u0902 \u0938\u0939\u0928\u0936\u0940\u0932\u0924\u093e \u0928\u093f\u0930\u094d\u0927\u093e\u0930\u093f\u0924 \u0915\u0940 \u0917\u0908 \u0939\u0948\u0964 \u0928\u0941\u0915\u0940\u0932\u0947 \u0938\u093f\u0930\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u091f\u093e\u0907\u092a C, \u0915\u0941\u0902\u0926 \u0938\u093f\u0930\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f F \u0914\u0930 \u0917\u094b\u0932 \u0938\u093f\u0930\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f R, \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0935\u093f\u0936\u093f\u0937\u094d\u091f \u0938\u093e\u092e\u0917\u094d\u0930\u0940 \u092e\u094b\u091f\u093e\u0908 \u0915\u0947 \u0932\u093f\u090f \u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u0939\u0948\u0964<\/p>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">\u0935\u093f\u0938\u094d\u0924\u0943\u0924 \u0925\u094d\u0930\u0947\u0921 \u0924\u093e\u0932\u093f\u0915\u093e<\/h2>\n<p style=\"margin-bottom: 20px;\">\u0928\u0940\u091a\u0947 \u091c\u0940\u092c\u0940\/\u091f\u0940 5280-2002 \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u0925\u094d\u0930\u0947\u0921 \u0906\u092f\u093e\u092e\u094b\u0902 \u0915\u0940 \u0935\u093f\u0938\u094d\u0924\u0943\u0924 \u0924\u093e\u0932\u093f\u0915\u093e \u0926\u0940 \u0917\u0908 \u0939\u0948, \u091c\u094b \u0907\u0902\u091c\u0940\u0928\u093f\u092f\u0930\u093f\u0902\u0917 \u0938\u0902\u0926\u0930\u094d\u092d \u0915\u0947 \u0932\u093f\u090f \u0938\u091f\u0940\u0915 \u092e\u093e\u0928 \u092a\u094d\u0930\u0926\u093e\u0928 \u0915\u0930\u0924\u0940 \u0939\u0948\u0964 \u0907\u0938\u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0921\u093f\u091c\u093c\u093e\u0907\u0928 \u0938\u0924\u094d\u092f\u093e\u092a\u0928 \u0914\u0930 \u0909\u0924\u094d\u092a\u093e\u0926\u0928 \u0935\u093f\u0928\u093f\u0930\u094d\u0926\u0947\u0936\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u0915\u0930\u0947\u0902\u0964<\/p>\n<div class=\"table-container\" style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u092a\u0948\u0930\u093e\u092e\u0940\u091f\u0930<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09401.5<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09401.9<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09402.2<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09402.6<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09402.9<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09403.3<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09403.5<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09403.9<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09404.2<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09404.8<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09405.5<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09406.3<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09408<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u090f\u0938\u091f\u09409.5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u0906\u0935\u093e\u091c\u093c \u0915\u093e \u0909\u0924\u093e\u0930-\u091a\u0922\u093c\u093e\u0935<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.1<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d1 \u0905\u0927\u093f\u0915\u0924\u092e<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.57<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.53<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.91<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.46<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">9.65<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d1 \u092e\u093f\u0928\u091f<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.38<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.76<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.43<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.76<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.73<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.04<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.62<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.28<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6.03<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7.78<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">9.43<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d2 \u0905\u0927\u093f\u0915\u0924\u092e<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.91<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.63<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.39<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.64<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.92<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.58<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.17<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.88<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7.85<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d2 \u092e\u093f\u0928\u091f<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.84<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.17<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.08<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.29<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.51<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.77<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.95<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.43<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.99<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.99<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7.59<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d3 \u0905\u0927\u093f\u0915\u0924\u092e<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.79<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.47<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.73<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.01<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.41<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.67<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.84<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.86<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.55<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.84<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7.44<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d3 \u092e\u093f\u0928\u091f<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.69<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.02<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.37<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.88<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.08<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.26<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.51<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.69<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.68<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.34<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.64<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7.24<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u0938\u0940 \u0905\u0927\u093f\u0915\u0924\u092e<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.15<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">r \u2248<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u0935\u093e\u0908 \u091f\u093e\u0907\u092a \u0938\u0940<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">y \u091f\u093e\u0907\u092a F<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">y \u091f\u093e\u0907\u092a R<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u0938\u0902\u0916\u094d\u092f\u093e<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin-bottom: 20px;\">\u092e\u093e\u092a \u092e\u093f\u0932\u0940\u092e\u0940\u091f\u0930 \u092e\u0947\u0902 \u0939\u0948\u0902\u0964 \u0938\u0930\u094d\u0935\u094b\u0924\u094d\u0924\u092e \u092a\u094d\u0930\u0926\u0930\u094d\u0936\u0928 \u0915\u0947 \u0932\u093f\u090f \u0938\u093e\u092e\u0917\u094d\u0930\u0940 \u0915\u0940 \u092e\u094b\u091f\u093e\u0908 \u0914\u0930 \u092d\u093e\u0930 \u0906\u0935\u0936\u094d\u092f\u0915\u0924\u093e\u0913\u0902 \u0915\u0947 \u0906\u0927\u093e\u0930 \u092a\u0930 \u0906\u0915\u093e\u0930 \u091a\u0941\u0928\u0947\u0902\u0964<\/p>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">\u0906\u0935\u0947\u0926\u0928 \u0938\u0902\u092c\u0902\u0927\u0940 \u0926\u093f\u0936\u093e\u0928\u093f\u0930\u094d\u0926\u0947\u0936 \u0914\u0930 \u0935\u093f\u091a\u093e\u0930\u0923\u0940\u092f \u092c\u093e\u0924\u0947\u0902<\/h2>\n<p style=\"margin-bottom: 20px;\">GB\/T 5280-2002 \u0915\u093e \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0930\u0924\u0947 \u0938\u092e\u092f, \u0927\u093e\u0917\u0947 \u0915\u093e \u0906\u0915\u093e\u0930 \u0938\u092c\u094d\u0938\u091f\u094d\u0930\u0947\u091f \u0938\u093e\u092e\u0917\u094d\u0930\u0940 \u0915\u0947 \u0905\u0928\u0941\u0930\u0942\u092a \u0930\u0916\u0947\u0902; 0.5 \u092e\u093f\u092e\u0940 \u091c\u0948\u0938\u0947 \u091b\u094b\u091f\u0947 \u092a\u093f\u091a \u092a\u0924\u0932\u0940 \u0936\u0940\u091f \u0915\u0947 \u0932\u093f\u090f \u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902, \u091c\u092c\u0915\u093f 2.1 \u092e\u093f\u092e\u0940 \u091c\u0948\u0938\u0947 \u092c\u0921\u093c\u0947 \u092a\u093f\u091a \u092e\u094b\u091f\u0940 \u0938\u093e\u092e\u0917\u094d\u0930\u0940 \u0915\u0947 \u0932\u093f\u090f \u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902\u0964 \u0926\u0930\u093e\u0930 \u0938\u0947 \u092c\u091a\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u092a\u093e\u092f\u0932\u091f \u0939\u094b\u0932 \u0915\u093e \u0906\u0915\u093e\u0930 \u0909\u091a\u093f\u0924 \u0930\u0916\u0947\u0902\u0964<\/p>\n<ul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 30px;\">\n<li>\u0924\u0947\u091c \u0927\u093e\u0930 \u0915\u0940 \u0906\u0935\u0936\u094d\u092f\u0915\u0924\u093e \u0935\u093e\u0932\u0947 \u0928\u0930\u092e \u092a\u0926\u093e\u0930\u094d\u0925\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u091f\u093e\u0907\u092a \u0938\u0940 \u0915\u093e \u091a\u092f\u0928 \u0915\u0930\u0947\u0902\u0964<\/li>\n<li>\u0935\u093f\u0930\u0942\u092a\u0923 \u0915\u094b \u0930\u094b\u0915\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u092a\u0939\u0932\u0947 \u0938\u0947 \u091b\u093f\u0926\u094d\u0930\u093f\u0924 \u091b\u0947\u0926\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u091f\u093e\u0907\u092a F \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u0930\u0947\u0902\u0964<\/li>\n<li>\u0938\u0902\u0935\u0947\u0926\u0928\u0936\u0940\u0932 \u0905\u0928\u0941\u092a\u094d\u0930\u092f\u094b\u0917\u094b\u0902 \u092e\u0947\u0902 \u0917\u094b\u0932 \u0938\u093f\u0930\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u091f\u093e\u0907\u092a \u0906\u0930 \u0915\u093e \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0930\u0947\u0902\u0964<\/li>\n<li>\u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u0915\u0947 \u0926\u094c\u0930\u093e\u0928 \u0925\u094d\u0930\u0947\u0921 \u090f\u0902\u0917\u0947\u091c\u092e\u0947\u0902\u091f \u0915\u0947 \u0932\u093f\u090f \u091f\u0949\u0932\u0930\u0947\u0902\u0938 \u0915\u0940 \u091c\u093e\u0902\u091a \u0915\u0930\u0947\u0902\u0964<\/li>\n<li>\u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u0915\u094b\u091f\u093f\u0902\u0917\u094d\u0938 \u0915\u0947 \u0938\u093e\u0925 \u091c\u0902\u0917 \u092a\u094d\u0930\u0924\u093f\u0930\u094b\u0927 \u092a\u0930 \u0935\u093f\u091a\u093e\u0930 \u0915\u0930\u0947\u0902\u0964<\/li>\n<\/ul>\n<p style=\"margin-bottom: 20px;\">\u092f\u0947 \u0926\u093f\u0936\u093e\u0928\u093f\u0930\u094d\u0926\u0947\u0936 \u092b\u093e\u0938\u094d\u091f\u0928\u093f\u0902\u0917 \u0915\u0940 \u0935\u093f\u0936\u094d\u0935\u0938\u0928\u0940\u092f\u0924\u093e \u0915\u094b \u092c\u0922\u093c\u093e\u0924\u0947 \u0939\u0948\u0902, \u091c\u093f\u0938\u0938\u0947 \u0905\u0938\u0947\u0902\u092c\u0932\u0940 \u0932\u093e\u0907\u0928\u094b\u0902 \u092e\u0947\u0902 \u0935\u093f\u092b\u0932\u0924\u093e\u090f\u0902 \u0915\u092e \u0939\u094b\u0924\u0940 \u0939\u0948\u0902\u0964<\/p>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">\u0905\u0915\u094d\u0938\u0930 \u092a\u0942\u091b\u0947 \u091c\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 \u092a\u094d\u0930\u0936\u094d\u0928 (FAQ)<\/h2>\n<div class=\"faq\" style=\"margin-top: 20px;\">\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">\u092e\u093e\u0928\u0915 \u092e\u0947\u0902 d1, d2 \u0914\u0930 d3 \u0915\u0947 \u092c\u0940\u091a \u0915\u094d\u092f\u093e \u0905\u0902\u0924\u0930 \u0939\u0948?<\/h3>\n<p style=\"margin-bottom: 20px;\">d1 \u092e\u0941\u0916\u094d\u092f \u0935\u094d\u092f\u093e\u0938 \u0939\u0948, d2 \u092a\u093f\u091a \u0935\u094d\u092f\u093e\u0938 \u0939\u0948, \u0914\u0930 d3 \u0932\u0918\u0941 \u0935\u094d\u092f\u093e\u0938 \u0939\u0948; \u092f\u0947 \u0909\u091a\u093f\u0924 \u092b\u093f\u091f \u0914\u0930 \u092e\u091c\u092c\u0942\u0924\u0940 \u0915\u0947 \u0932\u093f\u090f \u0925\u094d\u0930\u0947\u0921 \u092a\u094d\u0930\u094b\u092b\u093e\u0907\u0932 \u0915\u094b \u092a\u0930\u093f\u092d\u093e\u0937\u093f\u0924 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902\u0964<\/p>\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">\u092e\u0948\u0902 \u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u0925\u094d\u0930\u0947\u0921 \u092a\u094d\u0930\u0915\u093e\u0930 (C, F, R) \u0915\u093e \u091a\u092f\u0928 \u0915\u0948\u0938\u0947 \u0915\u0930\u0942\u0902?<\/h3>\n<p style=\"margin-bottom: 20px;\">\u091f\u093e\u0907\u092a C \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0938\u094d\u0935\u092f\u0902 \u091b\u0947\u0926\u0928\u0947 \u0935\u093e\u0932\u0947 \u0909\u092a\u0915\u0930\u0923\u094b\u0902 \u092e\u0947\u0902 \u0928\u0941\u0915\u0940\u0932\u0947 \u0938\u093f\u0930\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948; \u091f\u093e\u0907\u092a F \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u092a\u0939\u0932\u0947 \u0938\u0947 \u0921\u094d\u0930\u093f\u0932 \u0915\u093f\u090f \u0917\u090f \u091b\u0947\u0926\u094b\u0902 \u092e\u0947\u0902 \u0915\u0941\u0902\u0926 \u0938\u093f\u0930\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948; \u091f\u093e\u0907\u092a R \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0928\u0930\u092e \u0938\u093e\u092e\u0917\u094d\u0930\u093f\u092f\u094b\u0902 \u092e\u0947\u0902 \u0915\u094d\u0937\u0924\u093f \u0915\u094b \u0915\u092e \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0917\u094b\u0932 \u0938\u093f\u0930\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<\/p>\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">'\u0938\u0902\u0916\u094d\u092f\u093e' \u0935\u093e\u0932\u0940 \u092a\u0902\u0915\u094d\u0924\u093f \u0915\u094d\u092f\u093e \u0926\u0930\u094d\u0936\u093e\u0924\u0940 \u0939\u0948?<\/h3>\n<p style=\"margin-bottom: 20px;\">\u092f\u0939 \u0936\u093e\u0939\u0940 \u0938\u092e\u0915\u0915\u094d\u0937\u094b\u0902 \u092f\u093e \u0935\u093f\u0930\u093e\u0938\u0924 \u092a\u0926\u0928\u093e\u092e\u094b\u0902 \u0915\u0947 \u0905\u0928\u0941\u0930\u0942\u092a \u0939\u0948, \u091c\u094b \u0905\u0902\u0924\u0930\u0930\u093e\u0937\u094d\u091f\u094d\u0930\u0940\u092f \u092e\u093e\u0928\u0915\u094b\u0902 \u0915\u0947 \u0938\u093e\u0925 \u0915\u094d\u0930\u0949\u0938-\u0930\u0947\u092b\u0930\u0947\u0902\u0938\u093f\u0902\u0917 \u092e\u0947\u0902 \u0938\u0939\u093e\u092f\u0924\u093e \u0915\u0930\u0924\u093e \u0939\u0948\u0964<\/p>\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">\u0915\u094d\u092f\u093e \u0907\u0928 \u0906\u092f\u093e\u092e\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u0938\u0939\u0928\u0936\u0940\u0932\u0924\u093e \u0928\u093f\u0930\u094d\u0926\u093f\u0937\u094d\u091f \u0915\u0940 \u0917\u0908 \u0939\u0948?<\/h3>\n<p style=\"margin-bottom: 20px;\">\u0939\u093e\u0902, \u0905\u0927\u093f\u0915\u0924\u092e\/\u0928\u094d\u092f\u0942\u0928\u0924\u092e \u092e\u093e\u0928 \u0935\u093f\u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u0938\u0939\u0928\u0936\u0940\u0932\u0924\u093e \u092a\u094d\u0930\u0926\u093e\u0928 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902; \u0935\u093f\u0928\u093f\u092e\u0947\u092f\u0924\u093e \u0914\u0930 \u092a\u094d\u0930\u0926\u0930\u094d\u0936\u0928 \u0915\u0947 \u0932\u093f\u090f \u0907\u0928\u0915\u093e \u092a\u093e\u0932\u0928 \u0915\u0930\u0947\u0902\u0964<\/p>\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">\u092c\u093e\u0926 \u0915\u0947 \u0938\u0902\u0938\u094d\u0915\u0930\u0923\u094b\u0902 \u092e\u0947\u0902 \u0907\u0938 \u092e\u093e\u0928\u0915 \u0915\u093e \u0935\u093f\u0915\u093e\u0938 \u0915\u0948\u0938\u0947 \u0939\u0941\u0906 \u0939\u0948?<\/h3>\n<p style=\"margin-bottom: 20px;\">\u092c\u093e\u0926 \u0915\u0947 \u092e\u093e\u0928\u0915\u094b\u0902 \u091c\u0948\u0938\u0947 \u0915\u093f GB\/T 5280-2017 \u092e\u0947\u0902 ISO \u0938\u0902\u0930\u0947\u0916\u0923 \u0915\u094b \u0936\u093e\u092e\u093f\u0932 \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0939\u0948, \u091c\u093f\u0938\u0938\u0947 \u0935\u0948\u0936\u094d\u0935\u093f\u0915 \u0905\u0928\u0941\u0915\u0942\u0932\u0924\u093e \u0915\u0947 \u0932\u093f\u090f \u0906\u0915\u093e\u0930 \u0915\u093e \u0935\u093f\u0938\u094d\u0924\u093e\u0930 \u0914\u0930 \u0938\u0939\u0928\u0936\u0940\u0932\u0924\u093e \u092e\u0947\u0902 \u0938\u0941\u0927\u093e\u0930 \u0939\u0941\u0906 \u0939\u0948\u0964<\/p>\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">ST4.2 \u0915\u0947 \u0932\u093f\u090f \u0915\u093f\u0938 \u092a\u093e\u092f\u0932\u091f \u0939\u094b\u0932 \u0938\u093e\u0907\u091c \u0915\u0940 \u0938\u093f\u092b\u093e\u0930\u093f\u0936 \u0915\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948?<\/h3>\n<p style=\"margin-bottom: 20px;\">\u0938\u093e\u092e\u0917\u094d\u0930\u0940 \u0915\u0947 \u0906\u0927\u093e\u0930 \u092a\u0930 \u0906\u092e\u0924\u094c\u0930 \u092a\u0930 3.0-3.5 \u092e\u093f\u092e\u0940; \u092c\u093f\u0928\u093e \u0916\u0930\u094b\u0902\u091a \u0932\u0917\u0947 \u092a\u0915\u0921\u093c \u092c\u0928\u093e\u090f \u0930\u0916\u0928\u0947 \u0915\u0940 \u0936\u0915\u094d\u0924\u093f \u0938\u0941\u0928\u093f\u0936\u094d\u091a\u093f\u0924 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0907\u0937\u094d\u091f\u0924\u092e \u091c\u0941\u0921\u093c\u093e\u0935 \u0915\u093e \u092a\u0930\u0940\u0915\u094d\u0937\u0923 \u0915\u0930\u0947\u0902\u0964<\/p>\n<\/div>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction to the Standard GB\/T 5280-2002 specifies the thread dimensions and end types for self-tapping screws (sheet metal screws) with thread sizes ranging from ST1.5 to ST9.5. This standard ensures uniformity in manufacturing, facilitating reliable fastening in materials like metal sheets without pre-drilled holes. As a key reference in mechanical fastening, it defines parameters such [&hellip;]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[220],"tags":[],"class_list":["post-5749","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/hi\/wp-json\/wp\/v2\/posts\/5749","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/hi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/hi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/hi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/hi\/wp-json\/wp\/v2\/comments?post=5749"}],"version-history":[{"count":1,"href":"https:\/\/korea-transmission.com\/hi\/wp-json\/wp\/v2\/posts\/5749\/revisions"}],"predecessor-version":[{"id":5750,"href":"https:\/\/korea-transmission.com\/hi\/wp-json\/wp\/v2\/posts\/5749\/revisions\/5750"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/hi\/wp-json\/wp\/v2\/media?parent=5749"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/hi\/wp-json\/wp\/v2\/categories?post=5749"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/hi\/wp-json\/wp\/v2\/tags?post=5749"}],"curies":[{"name":"\u0921\u092c\u094d\u0932\u094d\u092f\u0942\u092a\u0940","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}