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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
Methods of sampling for mechanical properties tests of welded joint
WITHDRAWN published on 8.5.1989
Selected format:Determination of intergranular corrosion of 5XXX series aluminum alloys by mass loss
WITHDRAWN published on 12.5.2011
Selected format:Aluminium alloys extruded profiles used for structural material of railway vehicle carbodies
WITHDRAWN published on 12.5.2011
Selected format:Aluminum alloys extruded profiles used for structural material of railway vehicle carbodies
WITHDRAWN published on 30.12.2016
Selected format:Magnesium alloy die casting for steering wheel armature
WITHDRAWN published on 12.5.2011
Selected format:Electronic balance
WITHDRAWN published on 12.5.2011
Selected format:-
WITHDRAWN published on 20.8.1987
Selected format:Method of impact test for welded joint
WITHDRAWN published on 8.5.1989
Selected format:Impact test methods on welded joints
WITHDRAWN published on 31.3.2008
Selected format:General technical specification for pipes and fittings lined with fluoroplastics
WITHDRAWN published on 12.5.2011
Selected format:Latest update: 2026-03-27 (Number of items: 2 269 573)
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