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Standards GB - Chinese national standards - Page 5886
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 13402-1992
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Large-diameter carbon steel pipe flanges
WITHDRAWN published on 28.3.1992
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GB/T 13402-2010
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Large diameter steel pipe flanges
WITHDRAWN published on 10.1.2011
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GB/T 13403-1992
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Gaskets for large-diameter cabon steel pipe flanges
WITHDRAWN published on 28.3.1992
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GB/T 13403-2008
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Gaskets for large-diameter steel pipe flanges
WITHDRAWN published on 25.8.2008
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GB/T 13404-1992
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Polytetrafluoroethylene envelope gaskets for pipe flanges
WITHDRAWN published on 28.3.1992
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GB/T 13405-1992
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Grooved pulleys for automotive V-belt
WITHDRAWN published on 28.3.1992
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GB/T 13408-1992
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Standard quantity of spare for engine room machinery of sea-going ship
WITHDRAWN published on 30.3.1992
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GB/T 1341-1987
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Gray-King assay for coal
WITHDRAWN published on 1.1.1987
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GB/T 1341-2001
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Gray—King assay for coal
WITHDRAWN published on 12.11.2001
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GB/T 13410-1992
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The technical specifications of turbochargers used for marine diesel engines
WITHDRAWN published on 30.3.1992
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