GB/T 20688.4-2023 Rubber bearings—Part 4:Normal rubber bearings

GB/T 20688.4-2007 Rubber bearings—Part 4:Normal rubber bearings

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 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 1184-1996 Geometrical tolerancing—Geometrical tolerance for features without individual tolerance indications 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 1682-2014 Rubber,vulcanized—Determination of low-temperature brittleness—Single test piece method GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 2040-2002 Sheet of copper and copper alloy GB/T 2040-2008 Sheet of copper and copper alloy GB/T 2040-2017 Copper and copper alloy sheet GB/T 2941-2006 Rubber—General procedures for preparing and conditioning test pieces for physical test methods GB/T 2941-2025 Rubber—General procedures for preparing and conditioning test pieces for physical test methods GB/T 3077-1999 Alloy structure steels GB/T 3077-2015 Alloy structure steels GB/T 3280-2015 Cold rolled stainless steel plate, sheet and strip 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 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 7233.1-2009 Steel castings—Ultrasonic examination—Part 1:Steel castings for general purposes GB/T 7659-1987 Carbon steel castings suitable for welded structure GB/T 7659-2010 Steel casting suitable for welded structure GB/T 7659-2025 Steel castings for welding structures GB/T 7759.1-2015 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 1:At ambient or elevated temperatures GB/T 7760-2003 Rubber, vulcanized or thermoplastic—Determination of adhesion to a rigid substrate-90 degrees peel method 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 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 13384-1992 General specifications for packagings of mechanical and electrical products GB/T 13384-2008 General specifications for packing of mechanical and electrical product GB/T 28699-2012 Steel structure protection general requirements of coatings HG/T 2366-2015 Dimethylsilicone oil HG/T 2366-1992 Dimethyl silicone oil HG/T 2502-1993 5201 grease JB/T 5943-2018 Engineering Machinery Welding Components General Technical Specification JB/T 10726-2007 Diffused silicone pressure transmitter JJG 139-1999 Universal Tension and Compression Testing Machine JJG 139-2014 Tension,Compression and Universal Testing Machines JJG 882-2004 Pressure Transmitter JJG 882-2019 Pressure Transmitters JT/T 722-2023 Highway bridge steel structure anti-corrosion coating technical specifications JT/T 722-2008 Specifications of protective coating for highway bridge steel structure JT/T 901-2023 Bridge bearing using high-molecular material slider JT/T 901-2014 Bridge bearing using high-molecular material slider JT/T 1266-2019 Friction stir welding is a welding method in which a rotating tool is applied to the workpiece surface to create a solid weld. The weld joint is usually smooth and without porosity, which ensures the mechanical properties and corrosion resistance of the welded structure. This method is commonly used in the construction industry for joining steel plates, especially in bridges and other large-scale steel structures. The technology specification for cold zinc coating of steel structure bridge refers to the standard of cold zinc coating for steel structures, and provides the technic