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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
Steel wire ropes--Standard designations
WITHDRAWN published on 22.2.1988
Selected format:Shaped wire for annex of automobile body
WITHDRAWN published on 1.1.1988
Selected format:Flat wire for flexible axle
WITHDRAWN published on 1.1.1988
Selected format:Flat wire for internal combustion engine
WITHDRAWN published on 1.1.1988
Selected format:Hexagonal steel wire
WITHDRAWN published on 1.1.1988
Selected format:Steel wire for making needles for home sewing machine
WITHDRAWN published on 1.1.1988
Selected format:Inside diameter required precision seamless steel tube for hydraulic and pneumatic cylinder use
WITHDRAWN published on 22.2.1988
Selected format:Grey cast iron pipes with rubber ring of ladder-lip-shaped
WITHDRAWN published on 22.2.1988
Selected format:Soft mechanical joint grey cast iron fittings
WITHDRAWN published on 22.2.1988
Selected format:Grey cast iron pipes and fittings for train off water
WITHDRAWN published on 1.1.1988
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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