GB/T 3390.3-2004 Hand operated socket wrenches—Driving parts

GB/T 3390.1-2004 Hand operated socket wrenches-Socket GB/T 3390.2-2004 Hand operated socket wrenches—Driving squares GB/T 3390.4-2004 Hand operated socket wrenches—Attachments GB/T 3390.5-2004 Hand operated socket wrenches—Inspection, packaging and marking

GB 3390.3-1989

GB/T 3390.3-2013 Hand operated socket wrenches—Driving parts

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 3390.2-2004 Hand operated socket wrenches—Driving squares GB/T 3390.2-2013 Hand operated socket wrenches—Driving squares GB/T 3390.5-2004 Hand operated socket wrenches—Inspection, packaging and marking GB/T 3390.5-2013 Hand operated socket wrenches—Inspection,packaging and marking GB/T 4625-1998 Assembly tools for screws and nuts-Nomenclature GB/T 4625-2022 Assembly tools for screws and nuts—Nomenclature GB/T 4955-1997 Metallic coatings—Measurement of coating thickness—Coulometric method by anodic dissolution GB/T 4955-2005 Metallic coatings—Measurement of coating thickness—Coulometric method by anodic dissolution GB/T 6462-1986 Metallic and oxide coatings—Measurement of coating thickness—Microscopical method GB/T 6462-2005 Metallic and oxide coatings—Measurement of coating thickness—Microscopical method GB/T 6462-2025 Metallic and oxide coatings—Measurement of coating thinckness—Microscopical method

ISO 3315:1996