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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
Die forgings of aluminium and aluminium alloy—Dimensional tolerance and machining allowance
WITHDRAWN published on 30.12.1987
Selected format:Die forgings of aluminium and aluminium alloy—Dimensional tolerance and machining allowance
WITHDRAWN published on 31.12.2012
Selected format:Titanium clad stainless steel plate
WITHDRAWN published on 30.12.1987
Selected format:Titanium clad stainless steel plate
WITHDRAWN published on 30.4.2007
Selected format:Titanium clad steel plate
WITHDRAWN published on 30.12.1987
Selected format:Titanium clad steel plate
WITHDRAWN published on 18.7.2006
Selected format:Metallic powder material Nickel-based alloy powder for spraying
WITHDRAWN published on 30.12.1987
Selected format:Metallic powder material—Self-fluxing Fe-Cr-B-Si alloy powder
WITHDRAWN published on 30.12.1987
Selected format:Holders (Enclosures) crystal General specification for
WITHDRAWN published on 31.12.1987
Selected format:Apples—Guide to cold storage
WITHDRAWN published on 31.12.1987
Selected format:Latest update: 2025-07-19 (Number of items: 2 208 893)
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