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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
Specifications for construction and acceptance of industrial automation instrumentation
WITHDRAWN published on 1.1.1986
Selected format:Stainless steel friction stays for aluminium windows
WITHDRAWN published on 1.1.1988
Selected format:Handles for aluminium alloy doors and windows
WITHDRAWN published on 1.1.1988
Selected format:Looks for aluminium alloy windows
WITHDRAWN published on 1.1.1988
Selected format:Locks for aluminium alloy doors
WITHDRAWN published on 1.1.1988
Selected format:Sheaves for aluminium alloy sliding doors and windows
WITHDRAWN published on 1.1.1988
Selected format:Door closers
WITHDRAWN published on 1.1.1988
Selected format:Cocks with female screw connection--Cock type level indicator
WITHDRAWN published on 1.1.1988
Selected format:Packaging of color picture tubes
WITHDRAWN published on 1.1.1988
Selected format:Dual sound/stereophonic television broadcasting
WITHDRAWN published on 8.6.1988
Selected format:Latest update: 2025-12-26 (Number of items: 2 253 153)
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