JT/T 892-2014 Block assembly type expansion and contraction installation for highway bridge

GB/T 11264-1989 Light rails GB/T 11264-2012 Hot-rolled light rails GB/T 11345-1989 Method for manual ultrasonic testing and classification of testing results for ferritic steel welds GB/T 11345-2013 Non-destructive testing of welds—Ultrasonic testing—Techniques,testing levels,and assessment GB/T 11345-2023 Non-destructive testing of welds—Ultrasonic testing—Techniques, testing levels and assessment GB/T 11352-1989 Carbon steel castings for general engineering purposes GB/T 11352-2009 Carbon steel castings for general engineering purpose GB/T 1222-1984 Spring steel GB/T 1222-2007 Spring steels GB/T 1222-2016 Spring steels GB/T 12467.3-1998 Quality requirements for welding—Fusion welding of metallic materials—Part 3:Standards quality requirements GB/T 12467.3-2009 Quality requirements for fusion welding of metallic materials—Part 3:Standard quality requirements GB/T 1591-1994 High strength low alloy structural steels GB/T 1591-2008 High strength low alloy structural steels GB/T 1591-2018 High strength low alloy structural steels GB/T 1682-1994 Rubber, vulcanized—Determination of low-temperature brittleness(single test piece method) GB/T 1682-2014 Rubber,vulcanized—Determination of low-temperature brittleness—Single test piece method GB/T 1690-1992 Rubber, vulcanized-Determination of the effect of liquids GB/T 1690-2006 Rubber,vulcanized or thermoplastic—Determination of the effect of liquids GB/T 1690-2010 Rubber,vulcanized or thermoplastic—Determination of the effect of liquids GB/T 1839-2003 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products GB/T 1839-2008 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products GB/T 23934-2009 Hot coiled helical compression springs—Technical specifications GB/T 23934-2015 Hot formed helical compression springs—Technical Requirement GB/T 2650-1989 Method of impact test for welded joint GB/T 2650-2008 Impact test methods on welded joints GB/T 2650-2022 Destructive tests on welds in metallic materials—Impact tests GB/T 3512-2001 Rubber, vulcanized or thermoplastic—Accelerated ageing and heat resistance tests—Air-oven method GB/T 3512-2014 Rubber, vulcanized or thermoplastic—Accelerated ageing and heat resistance tests—Air-oven method GB/T 528-1998 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties GB/T 528-2009 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties GB/T 6031-1998 Rubber,vulcanized or thermoplastic—Determination of hardness (hardness between 10 IRHD and 100IRHD) GB/T 6031-2017 Rubber,vulcanized or thermoplastic—Determination of hardness(hardness between 10 IRHD and 100 IRHD) GB/T 699-1999 Quality carbon structural steels GB/T 699-2015 Quality carbon structure steels GB/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels GB/T 7659-1987 Carbon steel castings suitable for welded structure GB/T 7659-2010 Steel casting suitable for welded structure GB/T 7759-1996 Rubber, Vulcanized or thermoplastic—Determination of compression set at ambient elevated or low temperatures GB/T 7759.1-2015 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 1:At ambient or elevated temperatures GB/T 7759.2-2014 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 2:At low temperatures GB/T 7762-2003 Rubber, vulcanized or thermoplastic—Resistance to ozone cracking—Static strain test GB/T 7762-2014 Rubber,vulcanized or thermoplastic—Resistance to ozone cracking—Static strain testing JT/T 327-2016 JT/T 327-2016 General Technical Specification for Road Bridge Expansion Device JT/T 327-2004 Road bridge expansion joint GB/T 7659-2025 Steel castings for welding structures GB/T 11264-2025 Hot-rolled light rails GB/T 1839-2025 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products GB/T 1222-2025 Spring steels