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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
Convex and concave milling cutters—Part 1:The types and dimensions for concave milling cutters
WITHDRAWN published on 5.7.1996
Selected format:Convex and concave milling cutters—Part 2:The types and dimensions for convex milling cutters
WITHDRAWN published on 5.7.1996
Selected format:Convex and concave milling cutters—Technical specifications
WITHDRAWN published on 5.7.1996
Selected format:Electrically-heated thermostatic water bath
WITHDRAWN published on 1.1.1989
Selected format:Electrically-heated thermostatic water bath
WITHDRAWN published on 31.3.1989
Selected format:Thermostatic water bath
WITHDRAWN published on 1.1.1989
Selected format:Thermostatic water bath
WITHDRAWN published on 31.3.1989
Selected format:Baby incubator
WITHDRAWN published on 1.1.1989
Selected format:Baby incubator
WITHDRAWN published on 31.3.1989
Selected format:Medical electrical equipment—Part 2:Particular requirements for safety of baby incubators
WITHDRAWN published on 12.7.2000
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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