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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
Carbon steel wire for non-mechanical spring
WITHDRAWN published on 1.1.1989
Selected format:Blank for hard metal (carbide) gauge blocks
WITHDRAWN published on 27.2.1989
Selected format:Clamping and resharpening hard metal (carbide) inserts
WITHDRAWN published on 27.2.1989
Selected format:-
WITHDRAWN published on 1.1.1989
Selected format:Wrought copper and copper alloys—Detection of residual stress—Ammonia test
WITHDRAWN published on 22.12.1997
Selected format:Wrought aluminium and aluminium alloy--Hot rolled sheet in better quality
WITHDRAWN published on 1.1.1989
Selected format:Wrought aluminium and aluminium alloy--Cold rolled sheet in better quality
WITHDRAWN published on 1.1.1989
Selected format:Patterned, laminated, coated and coloured aluminium foils
WITHDRAWN published on 22.3.1989
Selected format:Wrought aluminium and aluminium alloy—Welded tube
WITHDRAWN published on 22.3.1989
Selected format:Wrought aluminium and aluminium alloy--Extruded rod and bar in better quality
WITHDRAWN published on 1.1.1989
Selected format:Latest update: 2026-04-08 (Number of items: 2 271 105)
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