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Standards GB - Chinese national standards - Page 8791
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
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GB/T 9214-1988
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Conical round-(ball-) nose hardmetal burrs
WITHDRAWN published on 27.5.1988
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GB/T 9215-1988
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Conical pointed-nose hardmetal burrs
WITHDRAWN published on 27.5.1988
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GB/T 9216-1988
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Inverted cone hardmetal burrs
WITHDRAWN published on 27.5.1988
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GB/T 9217-1988
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Hardmetal burrs technical specifications
WITHDRAWN published on 27.5.1988
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GB/T 9218-1988
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Reels for 35mm motion picture projectors--Dimensions
WITHDRAWN published on 26.5.1988
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GB/T 9218-2005
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Reels for 35mm motion picture projectors--Dimensions
WITHDRAWN published on 31.5.2005
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GB 9219-1988
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Specifications of reader lenses for transparent microforms
WITHDRAWN published on 1.1.1988
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GB 9220-1988
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Specifications of test film for readers for transparent microforms
WITHDRAWN published on 1.1.1988
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GB/T 9221-1988
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Preservatively-treated sleeper
WITHDRAWN published on 31.5.1988
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GB/T 9222-1988
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Strength calculation of pressure parts for watertube boilers
WITHDRAWN published on 6.6.1988
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