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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
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WITHDRAWN published on 1.1.1978
Selected format:Zinc powder
WITHDRAWN published on 28.8.2000
Selected format:Wrought aluminium and aluminium alloy—V corrugated sheet
WITHDRAWN published on 15.9.1986
Selected format:Wrought aluminium and aluminium alloy-V corrugated sheet
WITHDRAWN published on 8.5.2006
Selected format:Wrought aluminium and aluminium alloys—Extruded profiles for commercial usage
WITHDRAWN published on 9.6.2000
Selected format:Wrought aluminium and aluminium alloys extruded profiles for general engineering
WITHDRAWN published on 26.9.2006
Selected format:Wrought aluminium and aluminium alloys extruded profiles for general engineering
WITHDRAWN published on 10.12.2015
Selected format:Aluminium and aluminium alloy cold drawn (rolled) seamless tubes
WITHDRAWN published on 9.6.2000
Selected format:Aluminium and aluminium alloys cold drawn(rolled) seamless tubes
WITHDRAWN published on 14.1.2011
Selected format:Niobium powder for metallurgy
WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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