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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
Rubber shoes healthy and safe specification
WITHDRAWN published on 2.9.2010
Selected format:Marine cast steel pipe flanges
WITHDRAWN published on 27.3.1989
Selected format:Glass fibre filter
WITHDRAWN published on 2.9.2010
Selected format:Fiberglass fabric for architectural membrane
WITHDRAWN published on 2.9.2010
Selected format:Basalt fiber roving
WITHDRAWN published on 2.9.2010
Selected format:Metallic materials—Tube—Ring-expanding test
WITHDRAWN published on 2.9.2010
Selected format:Metallic materials—Tube—Ring tensile test
WITHDRAWN published on 2.9.2010
Selected format:Ferronickel
WITHDRAWN published on 2.9.2010
Selected format:Marine cast brass pipe flanges
WITHDRAWN published on 27.3.1989
Selected format:Continuously hot-dip coated steel sheet and strip—Tolerances on dimensions,shape and weight
WITHDRAWN published on 2.9.2010
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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