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Standards GB - Chinese national standards - Page 8761
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 9113.26-1988
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Integral steel pipe flanges with ring-joint face for PN 42. 0MPa (420 bar)
WITHDRAWN published on 1.1.1988
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GB/T 9113.3-2000
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Integral steel pipe flanges with tongue and groove face
WITHDRAWN published on 28.9.2000
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GB/T 9113.4-2000
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Integral steel pipe flanges with ring-joint face
WITHDRAWN published on 28.9.2000
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GB/T 9113.5-1988
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Integral steel pipe flanges with raised face for PN4. 0 MPa (40 bar)
WITHDRAWN published on 1.1.1988
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GB/T 9113.6-1988
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Integral steel pipe flanges with raised face for PN2. 0 MPa (20 bar)
WITHDRAWN published on 1.1.1988
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GB/T 9113.7-1988
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Integral steel pipe flanges with raised face for PN5. 0 MPa (50 bar)
WITHDRAWN published on 1.1.1988
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GB/T 9113.8-1988
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Integral steel pipe flanges with raised face for PN10. 0MPa (100 bar)
WITHDRAWN published on 1.1.1988
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GB/T 9113.9-1988
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Integral steel pipe flanges with male and female face for PN 1. 6MPa (16 bar)
WITHDRAWN published on 1.1.1988
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GB/T 9114-2000
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Hubbed screwed steel pipe flanges with raised face
WITHDRAWN published on 28.9.2000
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GB/T 9114-2010
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Hubbed screwed steel pipe flanges
WITHDRAWN published on 14.1.2011
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