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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Connections with waisted stud - Tape classification
Standard published on 25.8.2008
Selected format:Connections with waisted stud - Studs
Standard published on 25.8.2008
Selected format:Connections with waisted stud - Nuts,extension sleeves
Standard published on 25.8.2008
Selected format:Wrought titanium and titanium alloy for surgical implants
Standard published on 14.10.2017
Selected format:Testing method and judging rule of safety to friction spark of metallic material for coal mine
Standard published on 23.5.2023
Selected format:Covered electrodes for manual metal arc welding of nickel and nickel alloys
Standard published on 30.6.2025
Selected format:Aluminium base brazing filler metals—Part 1Solid brazing filler metals
Standard published on 28.3.2025
Selected format:Die casting zinc alloys
Standard published on 25.4.2024
Selected format:Copper and copper alloy castings
Standard published on 18.9.2013
Selected format:Magnesium alloy castings
Standard published on 13.7.2018
Selected format:Latest update: 2026-04-08 (Number of items: 2 271 105)
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