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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WITHDRAWN published on 1.1.1982
Selected format:Alloy structure steel wires
WITHDRAWN published on 10.6.1993
Selected format:Rolling bearings--Steel balls
WITHDRAWN published on 22.2.1989
Selected format:Rolling bearings—Steel balls
WITHDRAWN published on 11.10.2002
Selected format:-
WITHDRAWN published on 1.1.1982
Selected format:High speed tool steel wire
WITHDRAWN published on 15.9.2001
Selected format:Thermal insulating products for building applications—Determination of short term water absorption by partial immersion
WITHDRAWN published on 24.6.2014
Selected format:Thermal insulating products for building applicationsDetermination of long-term water absorption by immersion
WITHDRAWN published on 6.5.2014
Selected format:Hot zinc-coated low carbon steel wire for general use
WITHDRAWN published on 1.1.1982
Selected format:Harmonic drive gear reducers for robots
WITHDRAWN published on 24.6.2014
Selected format:Latest update: 2026-04-23 (Number of items: 2 274 600)
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