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Standards GB - Chinese national standards - Page 7630
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 4390-1984
WITHDRAWN
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Spanner gaps and sockets-metric series tolerances for general use
WITHDRAWN published on 1.1.1984
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GB/T 4390-1995
WITHDRAWN
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Spanner gaps and sockets—Metric series-tolerances for general use
WITHDRAWN published on 24.10.1995
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GB 4391-1984
WITHDRAWN
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Combinations of double-end wrenches gaps
WITHDRAWN published on 1.1.1984
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GB/T 4391-1995
WITHDRAWN
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Combinations of double-end wrenche gaps
WITHDRAWN published on 24.10.1995
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GB 4392-1984
WITHDRAWN
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Slugging open-end wrenches and slugging box wrenches
WITHDRAWN published on 1.1.1984
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GB/T 4392-1995
WITHDRAWN
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Slugging open-end wrenches and slugging box wrenches
WITHDRAWN published on 24.10.1995
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GB 4393-1984
WITHDRAWN
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Open-end wrenches, box wrenches and combination wrenches--Technical specifications
WITHDRAWN published on 1.1.1984
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GB/T 4393-1995
WITHDRAWN
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Open-end wrenches, box wrenches and combination wrenches—Technical specifications
WITHDRAWN published on 24.10.1995
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GB 4394-1984
WITHDRAWN
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Inspection, marking and packaging for open-end wrenches, ring wrenches and combination wrenches
WITHDRAWN published on 1.1.1984
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GB 4395-1992
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Agent for chemical foam fire extinguishers
WITHDRAWN published on 1.6.1992
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