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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
Plain bearings--Copper alloys--Cast copper alloys for solid and multilayer plain bearings
WITHDRAWN published on 1.1.1989
Selected format:Plain bearings--Copper alloys--Wrought copper alloys for solid plain bearings
WITHDRAWN published on 1.1.1989
Selected format:Plain bearings--Aluminium alloys for solid bearings
WITHDRAWN published on 1.1.1989
Selected format:Plain bearings--Metallic multilayer materials for thin-walled plain bearings
WITHDRAWN published on 1.1.1989
Selected format:Plain bearings--Hardness testing of bearing metals--Solid materials
WITHDRAWN published on 1.1.1989
Selected format:Plain bearing--Hardness testing of bearing metals--Compound materials
WITHDRAWN published on 1.1.1989
Selected format:Flexible freight container
WITHDRAWN published on 17.7.2000
Selected format:Silicagel desiccants for packaging
WITHDRAWN published on 1.1.1989
Selected format:Hot stamping foil
WITHDRAWN published on 22.3.1989
Selected format:Cling wrap polyethylene film for keeping fresh of food
WITHDRAWN published on 22.3.1989
Selected format:Latest update: 2026-04-08 (Number of items: 2 271 105)
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