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Standards GB - Chinese national standards - Page 5759
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 12731-2003
WITHDRAWN
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Fire-resistant V-belt
WITHDRAWN published on 11.12.2003
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GB 12732-1996
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Automotive V-belts
WITHDRAWN published on 28.10.1996
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GB 12733-1991
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Size-Variable speed wide V-belt for industry
WITHDRAWN published on 1.1.1991
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GB/T 12733-1994
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Size of variable-speed-changers wide V-belts for industry
WITHDRAWN published on 22.12.1994
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GB/T 12734-1991
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Automotive synchronous belt--Dimensions
WITHDRAWN published on 12.2.1991
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GB/T 12734-2003
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Automotive synchronous belts
WITHDRAWN published on 9.10.2003
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GB/T 12735-1991
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Fatigue test method for agricultural V-belts
WITHDRAWN published on 12.2.1991
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GB/T 12736-1991
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Conveyor belts—Determination of strength of mechanical fastening—Static test method
WITHDRAWN published on 12.2.1991
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GB/T 12736-2009
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Conveyor belts—Determination of strenght of mechanical fastenings—Static test method
WITHDRAWN published on 24.4.2009
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GB/T 12737-1991
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Chemical products for industrial use—General method for determination of traces of sulfate by reduction and titrimetry
WITHDRAWN published on 9.2.1991
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