GB/T 4392-2019 Slugging open-end wrenches and slugging box-end wrenches

GB/T 4392-1995 Slugging open-end wrenches and slugging box wrenches

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 699-1999 Quality carbon structural steels GB/T 699-2015 Quality carbon structure steels GB/T 1957-1981 Limit gauges for plain workpiece GB/T 1957-2006 Tolerances and general features for plain limin gauges GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability) GB/T 4390-1995 Spanner gaps and sockets—Metric series-tolerances for general use GB/T 4390-2008 Wrench openings—Tolerances for general use GB/T 4393-1995 Open-end wrenches, box wrenches and combination wrenches—Technical specifications GB/T 4393-2008 Open end wrenches,box wrenches and combination wrenches—Technical specifications GB/T 5305-1985 Packaging,marking,transportation and storage of hand tools GB/T 5305-2008 Packaging,marking,transportation and storage of hand tools 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 2829-2025 Sampling procedures and tables for periodic inspection by attributes(Apply to inspection of process stability)