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Standards GB - Chinese national standards - Page 7790
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 4679-2003
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Specification of die-casting die components
WITHDRAWN published on 23.7.2003
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GB 468-1982
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WITHDRAWN published on 1.1.1982
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GB/T 468-1997
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Copper wire bars for electrical purposes
WITHDRAWN published on 22.12.1997
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GB 4680-1984
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WITHDRAWN published on 1.1.1984
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GB/T 4680-1997
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Horizontal internal broaching machines—Testing of the accuracy
WITHDRAWN published on 7.4.1997
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GB/T 4681-1984
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External cylindrical centerless grinding machines—Testing of the accuracy
WITHDRAWN published on 28.9.1984
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GB/T 4682-1984
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Internal cylindrical grinding machines with horizontal spindles—Testing of the accuracy
WITHDRAWN published on 28.9.1984
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GB 4683-1984
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WITHDRAWN published on 1.1.1984
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GB/T 4683-1993
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Turret lathes—Testing of the accuracy
WITHDRAWN published on 17.4.1993
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GB 4684-1984
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External cylindrical grinding machines--Main parameters
WITHDRAWN published on 1.1.1984
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