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Standards GB - Chinese national standards - Page 7612
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 3966-1983
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Jewel bearings with through hole for instruments and meters
WITHDRAWN published on 1.1.1983
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GB 3967-1983
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Jewel bearings with end stones for instruments and meters
WITHDRAWN published on 1.1.1983
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GB 3968-1983
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Jewel bearings with recess for instruments and meters
WITHDRAWN published on 1.1.1983
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GB/T 3969-1983
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Porcelain bushing shell for transformer up to 35kV
WITHDRAWN published on 9.12.1983
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GB/T 397-1965
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WITHDRAWN published on 1.1.1965
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GB/T 397-1998
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Technical condition of coal for metallurgical coke
WITHDRAWN published on 8.12.1998
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GB/T 397-2009
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Specification of coal for coke making
WITHDRAWN published on 1.6.2009
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GB 3970-1983
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Steel pins for pin insulators used on over head power and telegraph lines
WITHDRAWN published on 1.1.1983
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GB 3971.1-1983
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Numbering for automatic telephone in national communication network
WITHDRAWN published on 1.1.1983
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GB 3971.2-1983
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Interoffice junction digital line signalling system for telephone automatic switching network
WITHDRAWN published on 15.12.1983
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