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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
Wrought bronzes--Chemical composition and forms of wrought products
WITHDRAWN published on 22.7.1985
Selected format:Wrought coppernickel alloys--Chemical composition and forms of wrought products
WITHDRAWN published on 22.7.1985
Selected format:Wrought nickels and nickel alloys—Chemical composition and forms of wrought products
WITHDRAWN published on 22.7.1985
Selected format:Wrought nickel and nickel alloys—Chemical composition and forms of wrought products
WITHDRAWN published on 30.4.2007
Selected format:Antimony trisulfide
WITHDRAWN published on 22.7.1985
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Wrought aluminium alloy extruded profiles for architecture
WITHDRAWN published on 1.1.1993
Selected format:Wrought aluminum alloy extruded profiles for architecture Part 1: Untreated profiles
WITHDRAWN published on 22.7.1985
Selected format:Wrought aluminium alloy extruded profiles for architecture—Part 1:Untreated profiles
WITHDRAWN published on 1.11.2004
Selected format:Aluminium alloy extruded profiles for architecture—Part 1:Mill finish profiles
WITHDRAWN published on 28.8.2008
Selected format:Latest update: 2026-06-11 (Number of items: 2 281 927)
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