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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
(The parts and units of jigs and fixtures. Interchangeable drill sleeve)
WITHDRAWN published on 1.1.1991
Selected format:Test method of C-Ring sample to stress-corrosion cracking for wrought aluminium and aluminium alloys products
WITHDRAWN published on 29.12.2008
Selected format:Wrought aluminium alloys sheet and plate for ships
WITHDRAWN published on 29.12.2008
Selected format:Aluminium and Aluminium alloys foil for soft tube
WITHDRAWN published on 29.12.2008
Selected format:Aluminium and aluminium alloys foil for semi-rigid container
WITHDRAWN published on 29.12.2008
Selected format:(The parts and units of jigs and fixtures. Quick-change drill sleeve)
WITHDRAWN published on 1.1.1991
Selected format:Overlaying-welding procedure qualification for valves sealing face
WITHDRAWN published on 23.12.2008
Selected format:(The parts and units of jigs and fixtures. Boring sets)
WITHDRAWN published on 1.1.1991
Selected format:(The parts and units of jigs and fixtures. Apply boring bush)
WITHDRAWN published on 1.1.1991
Selected format:Test procedures for converter-fed three phase cage induction motors
WITHDRAWN published on 31.12.2008
Selected format:Latest update: 2026-01-22 (Number of items: 2 257 357)
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