JG/T 99-1999 Piston rings for tubular diesel pile hammer

GB/T 228-2002 Metallic materials—Tensile testing at ambient temperature GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.2-2015 Metallic materials—Tensile testing—Part 2:Method of test at elevated temperature GB/T 228.3-2019 Metallic materials—Tensile testing—Part 3:Method of test at low temperature GB/T 228.4-2019 Metallic materials—Tensile testing—Part 4:Method of test in liquid helium GB/T 230.1-2004 Metallic Rockwell hardness test—Part1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2009 Metallic materials—Rockwell hardness test—Part 1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method GB/T 230.2-2002 Metallic rockwell hardness test—Part 2:Verification and calibration of hardness testers(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.2-2012 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines GB/T 230.2-2022 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines and indenters GB/T 230.3-2002 Metallic rockwell hardness test—Part 3:Calibration of hardness reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.3-2012 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.3-2022 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks GB/T 231.1-2002 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.1-2009 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.1-2018 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.2-2002 Metallic Brinell hardness test—Part 2:Verification and calibration of hardness testers GB/T 231.2-2012 Metallic materials—Brinell hardness test—Part 2:Verification and calibration of testing machines GB/T 231.2-2022 Metallic materials—Brinell hardness test—Part 2:Verification and calibration of testing machines GB/T 231.3-2002 Metallic Brinell hardness test—Part 3:Calibration of hardness reference blocks GB/T 231.3-2012 Metallic materials—Brinell hardness test—Part 3:Calibration of reference blocks GB/T 231.3-2022 Metallic materials—Brinell hardness test—Part 3:Calibration of reference blocks GB/T 231.4-2009 Metallic materials—Brinell hardness test—Part 4:Tables of hardness values GB/T 1149.1-1994 Internal combustion engines—Piston rings—General specifications GB/T 1149.1-2008 Internal combustion engines—Piston rings—Part 1:General specifications GB/T 1149.2-1994 Internal combustion engines—Piston rings—Vocabulary GB/T 1149.2-2010 Internal combustion engines—Piston rings—Part 2:Vocabulary GB/T 1149.3-1992 Internal combustion engines—Piston rings-Scraper rings GB/T 1149.3-2010 Internal combustion engines—Piston rings—Part 3:Material specifications GB/T 1149.4-1994 Internal combustion engines—Piston rings—Quality requirements GB/T 1149.4-2008 Internal combustion engines—Piston rings—Part 4:Quality requirements GB/T 1149.4-2021 Internal combustion engines—Piston rings—Part 4:Quality requirements GB/T 1149.5-1992 Internal combustion engines—Piston rings-Oil control rings GB/T 1149.5-2008 Internal combustion engines—Piston rings—Part 5:Inspection measuring principles GB/T 1149.6-1994 Internal combustion engines—Piston rings—Inspection measuring principles GB/T 1149.6-2008 Internal combustion engines—Piston rings—Part 6:Scraper rings made of cast iron GB/T 1149.6-2021 Internal combustion engines—Piston rings—Part 6:Scraper rings made of cast iron GB/T 1149.7-1994 Internal combustion engines—Piston rings—Coil-spring-loaded oil control rings GB/T 1149.7-2010 Internal combustion engines—Piston rings—Part 7:Rectangular rings made of cast iron GB/T 1149.8-2008 Internal combustion engines—Piston rings—Part 8:Rectangular rings made of steel GB/T 1149.8-2022 Internal combustion engines—Piston rings—Part 8:Rectangular rings made of steel GB/T 1149.9-2008 Internal combustion engines—Piston rings—Part 9:Keystone rings made of cast iron GB/T 1149.10-2013 Internal combustion engines—Piston rings—Part 10:Keystone rings made of steel GB/T 1149.11-2010 Internal combustion engines—Piston rings—Part 11:Half keystone rings made of cast iron GB/T 1149.11-2023 Internal combustion engines—Piston rings—Part 11:Half keystone rings made of cast iron GB/T 1149.12-2013 Internal combustion engines—Piston rings—Part 12:Half keystone rings made of steel GB/T 1149.12-2023 Internal combustion engines—Piston rings—Part 12:Half keystone rings made of steel GB/T 1149.13-2008 Internal combustion engines—Piston rings—Part 13:Oil control rings GB/T 1149.14-2008 Internal combustion engines—Piston rings—Part 14:Coil-spring-loaded oil control rings GB/T 1149.15-2017 Internal combustion engines—Piston rings—Part 15:Coil-spring-loaded oil control rings of narrow width made of cast iron GB/T 1149.16-2015 Internal combustion engines—Piston rings—Part16:Expander/segment oil-control rings GB/T 1149.17-2023 Internal combustion engines—Piston rings—Part 17:Coil-spring-loaded oil control rings made of steel GB/T 1348-1988 Spheroidal graphite iron castings GB/T 1348-2009 Spheroidal graphite iron castings GB/T 1348-2019 Spheroidal graphite iron castings GB 2106 GB 4342 GB/T 6060.2-1985 Roughness comparison specimens—Ground, turned, bored,milled, shaped and planed GB/T 6060.2-2006 Roughness comparison specimens—Ground,turned,bored,milled,shaped and planed GB/T 6062-2002 Geometrical product specifications (GPS)—Surface texture-Profile method—Nominal characteristics of contact(stylus)instruments GB/T 6062-2009 Geometrical Product Specifications (GPS)—Surface texture:Profile method—Nominal characteristic of contact (stylus) instruments GB 8060 GB 8516 GB/T 9441-1988 Metallographic test for spheroidal graphite cast iron GB/T 9441-2009 Metallographic test for spheroidal graphite cast iron GB/T 9441-2021 Metallographic test method for spheroidal graphite cast iron