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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
Aluminum bronze round bars
WITHDRAWN published on 1.1.1984
Selected format:Cadmium bronze round bars
WITHDRAWN published on 1.1.1984
Selected format:Silicon bronze bars
WITHDRAWN published on 1.1.1984
Selected format:Tin phosphor bronze bars
WITHDRAWN published on 1.1.1984
Selected format:Copper-nickel-zinc alloy round bars
WITHDRAWN published on 1.1.1984
Selected format:Cadmium round bars
WITHDRAWN published on 1.1.1984
Selected format:Nickel and nickel-copper alloys round bars
WITHDRAWN published on 29.5.1984
Selected format:Aluminum and aluminum alloy seamless tubes dimensions and deviations
WITHDRAWN published on 1.1.1984
Selected format:Wrought aluminium and aluminium alloy tubes—Dimensions and deviations
WITHDRAWN published on 18.4.1995
Selected format:-
WITHDRAWN published on 1.1.1984
Selected format:Latest update: 2025-09-17 (Number of items: 2 234 360)
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