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Standards GB - Chinese national standards - Page 5713
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 12445.1-1990
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WITHDRAWN published on 1.1.1990
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GB 12445.2-1990
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WITHDRAWN published on 1.1.1990
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GB 12445.3-1990
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WITHDRAWN published on 1.1.1990
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GB/T 12446-1990
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Technial specifications of elenents for press die sets
WITHDRAWN published on 1.1.1990
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GB/T 12447-1990
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Accuracy test for press die sets
WITHDRAWN published on 1.1.1990
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GB/T 12448-1990
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Woodworking machines—Technical classification of woodworking machines and auxiliary machines for woodworking
WITHDRAWN published on 23.7.1990
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GB/T 12449-1990
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Interface for using dedicated interconnections between sound and television broadcasting transmitting equipment and supervisory equipment
WITHDRAWN published on 2.8.1990
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GB 1245-1987
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Plates, frames and wiring boxes for flush mounted electrical accessories
WITHDRAWN published on 1.1.1987
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GB/T 12450-1990
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Title leaves of books
WITHDRAWN published on 1.1.1990
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GB/T 12451-1990
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Cataloguing in publication data in the book
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