GB/T 5135.18-2026 Automatic sprinkler system—Part 18:Pipe supports and hangers for fire protection system

GB 5135.23-2026 Automatic sprinkler system—Part 23:Glass separation sprinklers

GB/T 5135.18-2010 Automatic sprinkler system—Part 18:Pipe hangers

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 3091-2001 Welded steel pipe for low pressure liquid delivery GB/T 3091-2008 Welded steel pipes for low pressure liquid delivery GB/T 3091-2015 Welded steel pipes for low pressure liquid delivery GB/T 3091-2025 Welded steel pipes for low pressure fluid delivery GB/T 3098.1-2000 Mechanical properties of fasteners—Bolts, screws and studs GB/T 3098.1-2010 Mechanical properties of fasteners—Bolts,screws and studs GB/T 3098.2-2000 Mechanical properties of fasteners—Nuts—Coarse thread GB/T 3098.2-2015 Mechanical properties of fasteners—Nuts GB/T 3098.2-2025 Mechanical properties of fasteners—Part 2:Nuts GB/T 3098.3-2000 Mechanical properties of fasteners—Setscrews GB/T 3098.3-2016 Mechanical properties of fasteners—Set screws GB/T 3098.4-2000 Mechanical properties of fasteners—Nuts—Fine pitch thread GB/T 3098.5-2000 Mechanical properties of fasteners—Treated steel tapping screws GB/T 3098.5-2016 Mechanical properties of fasteners—Tapping screws GB/T 3098.5-2025 Mechanical properties of fasteners—Part 5:Tapping screws GB/T 3098.6-2000 Mechanical properties of fasteners—Bolts, screws and studs made of stainless-steel GB/T 3098.6-2014 Mechanical properties of fasteners—Stainless steel Bolts,screws and studs GB/T 3098.6-2023 Mechanical properties of fasteners—Stainless steel bolts,screws and studs GB/T 3098.7-2000 Mechanical properties of fasteners—Thread rolling screws GB/T 3098.8-1992 Mechanical properties of fasteners—Components for bolted connections made mainly from materials with a high temperature strength GB/T 3098.8-2010 Mechanical properties of fasteners Parts for bolted connections for use at temperatures from -200 ℃～+700 ℃ GB/T 3098.9-2002 Mechanical properties of fasteners—Prevailing torque type steel hexagon nuts GB/T 3098.9-2010 Mechanical properties of fasteners—Prevailing torque type steel nuts GB/T 3098.9-2020 Mechanical properties of fasteners—Prevailing torque type steel nuts GB/T 3098.11-2002 Mechanical properties of fasteners—Drilling screws with tapping screw thread GB/T 3098.14-2000 Mechanical properties of fasteners—Widening test on nuts GB/T 3098.15-2000 Mechanical properties of fasteners—Nuts made of stainless-steel GB/T 3098.15-2014 Mechanical properties of fasteners—Stainless steel nuts GB/T 3098.15-2023 Mechanical properties of fasteners—Stainless steel nuts GB/T 3098.16-2000 Mechanical properties of fasteners—Set screws made of stainless-steel GB/T 3098.16-2014 Mechanical properties of fasteners—Stainless steel set screws GB/T 3098.17-2000 Mechanical properties of fasteners—Preloading test for the detection of hydrogen embrittlement—Parallel bearing surface method GB/T 3098.18-2004 Mechanical properties of fasteners—Blind rivets testing GB/T 3098.19-2004 Mechanical properties of fasteners—Blind rivets with break pull mandrel GB/T 3098.20-2004 Mechanical properties of fasteners—Wing nuts with specified proof torque GB/T 3098.21-2008 Mechanical properties of fasteners—Tapping screws of stainless-steel GB/T 3098.21-2014 Mechanical properties of fasteners—Stainless steel tapping screws GB/T 3098.22-2009 Mechanical properties of fasteners made of the fine grain non-heat treatment steel—Bolts,screws and studs GB/T 3098.23-2020 Mechanical properties of fasteners—M42～M72 bolts,screws and studs GB/T 3098.24-2020 Mechanical properties of fasteners—Stainless steel and nickel alloys bolts,screws,studs and nuts for high temperature applications GB/T 3098.25-2020 Mechanical properties of fasteners—Guidance for the selection of stainless steels and nickel alloys for fasteners GB/T 3098.26-2021 Mechanical properties of fasteners—Flat washers GB/T 4956-2003 Non-magnetic coatings on magnetic substrates—Measurement of coating thickness-Magnetic method GB/T 4956-2025 Non-magnetic coatings on magnetic substrates—Measurement of coating thickness—Magnetic method GB/T 6728-2002 Cold formed steel hollow sections for general structure—Dimensions,shapes,weight and permissble deviations GB/T 6728-2017 Cold forming hollow sectional steel for general structure GB/T 6728-2025 Cold forming sectional steel for general structure GB/T 9944-2002 Stainless steel wire ropes GB/T 9944-2015 Stainless steel wire ropes GB/T 9944-2025 Stainless-steel wire ropes GB/T 9969-2008 General principles for preparation of instructions for use of industrial products GB 9969.1-1998 General principles for preparation of instructions for use of industrial products GB/T 9978.1-2008 Fire-resistance tests—Elements of building construction—Part 1:General requirements GB/T 25208-2010 Environmental test methods for fixed extinguishing systems GB/T 37267-2018 General specification of seismic bracing for building JG/T 160-2004 Expansion and undercut building anchors for use in concrete JG/T 160-2017 Mechanical anchors for use in concrete