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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
Single-lody inside micrometers
WITHDRAWN published on 18.4.1988
Selected format:Odd fluted micrometer
WITHDRAWN published on 18.4.1988
Selected format:Micrometer with prismatically arranged measuring faces
WITHDRAWN published on 10.2.2004
Selected format:Precision gear shaping machines--Testing of the accuracy
WITHDRAWN published on 18.4.1988
Selected format:Dimension, shape, weight and tolerance for cold-drawn square steels
WITHDRAWN published on 1.1.1982
Selected format:Woodworking band saw blade
WITHDRAWN published on 1.1.1988
Selected format:General specifications for metal-cutting machine tools
WITHDRAWN published on 18.4.1988
Selected format:Side and face milling cutters with double alternate helical teeth with carbide tips
WITHDRAWN published on 18.4.1988
Selected format:The basic types and dimensions for rotary gear milling cutters
WITHDRAWN published on 1.1.1988
Selected format:The technical specification for rotary gear milling cutters
WITHDRAWN published on 1.1.1988
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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