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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
Arch round-(ball-) nose hardmetal burrs
WITHDRAWN published on 27.5.1988
Selected format:Arch pointed-nose hardmetal burrs
WITHDRAWN published on 27.5.1988
Selected format:Flame hardmetal burrs
WITHDRAWN published on 27.5.1988
Selected format:60°and 90°cone hardmetal burrs
WITHDRAWN published on 27.5.1988
Selected format:Conical round-(ball-) nose hardmetal burrs
WITHDRAWN published on 27.5.1988
Selected format:Conical pointed-nose hardmetal burrs
WITHDRAWN published on 27.5.1988
Selected format:Inverted cone hardmetal burrs
WITHDRAWN published on 27.5.1988
Selected format:Hardmetal burrs technical specifications
WITHDRAWN published on 27.5.1988
Selected format:Reels for 35mm motion picture projectors--Dimensions
WITHDRAWN published on 26.5.1988
Selected format:Reels for 35 mm motion picture projectors—Dimensions
WITHDRAWN published on 31.5.2005
Selected format:Latest update: 2026-04-21 (Number of items: 2 274 412)
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