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Standards GB - Chinese national standards - Page 5527
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 11255-1989
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Grain oriented silicon steel strip
WITHDRAWN published on 1.1.1989
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GB 11256-1989
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WITHDRAWN published on 1.1.1989
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GB/T 11256-1989
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Large diameter steel wire ropes
WITHDRAWN published on 31.3.1989
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GB 11257-1989
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Grey cast iron fittings with rubber ring of ladder-lip-shaped
WITHDRAWN published on 1.1.1989
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GB 11258-1989
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Double wall copper-brazed steel tubing
WITHDRAWN published on 1.1.1989
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GB/T 11258-1989
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Double wall copper-brazed steel tubing
WITHDRAWN published on 31.3.1989
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GB 11259-1989
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WITHDRAWN published on 1.1.1989
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GB/T 11259-1999
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Standard practice for fabrication and control of steel reference blocks used in ultrasonic inspection
WITHDRAWN published on 1.11.1999
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GB/T 11259-2008
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Non-destructive testing—Practice for fabrication and control of steel reference blocks used in ultrasonic testing
WITHDRAWN published on 30.7.2008
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GB 1126-1985
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T-slot cutter with morse taper shank
WITHDRAWN published on 1.1.1985
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