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Standards GB - Chinese national standards - Page 5449
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 10744-1989
WITHDRAWN
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The specifications of gasoline engines for mopeds
WITHDRAWN published on 1.1.1989
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GB/T 10745-1989
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Marine pipe flanges—Types
WITHDRAWN published on 27.3.1989
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GB/T 10746-1989
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Marine steel pipe flanges, butt weld-on
WITHDRAWN published on 27.3.1989
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GB/T 10747-1989
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Marine combination pipe flanges, slip-on steel outer flanges, butt weld-on steel inner flanges
WITHDRAWN published on 27.3.1989
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GB/T 10748-1989
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Marine combination pipe flanges, slip-on steel outer flanges, braze-on brass inner flanges
WITHDRAWN published on 27.3.1989
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GB/T 10749-1989
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Marine slip-on steel pipe flanges for expanded end copper pipes
WITHDRAWN published on 27.3.1989
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GB/T 10750-1989
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Marine oval-shaped cast iron and cast steel pipe flanges
WITHDRAWN published on 31.3.1989
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GB/T 10751-1989
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Marine oval-shaped steel pipe flanges weld-on
WITHDRAWN published on 31.3.1989
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GB 10752-1989
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WITHDRAWN published on 1.1.1989
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GB/T 10752-1995
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Marine steel butt-welding fittings
WITHDRAWN published on 20.11.1995
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