GB/T 11270.2-2002 Abrasive products—Diamond circular saw blade—Part 2:Sintered saw blades

GB/T 11270.1-2002 Abrasive products—Diamond circular saw blade—Part 1:Welded saw blades

GB/T 11270.2-2021 Superabrasive products—Diamond circular saw blade—Part 2:Sintered saw blades

GB/T 11270.1-2002 Abrasive products—Diamond circular saw blade—Part 1:Welded saw blades JC/T 220 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 1222-1984 Spring steel GB/T 1222-2007 Spring steels GB/T 1222-2016 Spring steels GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability) GB/T 6405-1994 Types of synthetic diamond and cubic boron nitride GB/T 6405-2017 Superabrasive—Types of cubic boron nitride JB/T 7989-2023 Superhard Abrasive Technical Specification for Artificial Diamond Technology JB/T 7989-2012 JBT 7989-2012 Ultra-hard abrasives: Technical conditions for artificial diamonds JB/T 7989-1997 JBT 7989-1997 Superhard abrasive synthetic diamond technology conditions GB/T 1222-2025 Spring steels GB/T 2829-2025 Sampling procedures and tables for periodic inspection by attributes(Apply to inspection of process stability)