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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
Dimensions, shape, weight and tolerances for hot-rolled L-sectional steel
WITHDRAWN published on 20.9.1988
Selected format:Seamless steel tubes for petroleum cracking
WITHDRAWN published on 20.9.1988
Selected format:Seamless steel tubes for petroleum cracking
WITHDRAWN published on 16.8.2006
Selected format:Vertical belt tighteners for type TD belt conveyor--Specifications
WITHDRAWN published on 13.9.1977
Selected format:Data communication--37 Pin and 9 pin DTE/DCE interface connectors and pin assignments
WITHDRAWN published on 26.10.1988
Selected format:Data communication--34 PinDTE/DCE interface connector and pin assignments
WITHDRAWN published on 26.10.1988
Selected format:Data communication--15 PinDTE/DCE interface connector and pin assignments
WITHDRAWN published on 26.10.1988
Selected format:Standard for guality of black carp fry and fingerling
WITHDRAWN published on 26.10.1988
Selected format:Fresh and frozen demi carcass pork
WITHDRAWN published on 20.7.2001
Selected format:Frozen pork muscle, cuts
WITHDRAWN published on 20.7.2001
Selected format:Latest update: 2024-08-30 (Number of items: 2 345 304)
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