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Standards GB - Chinese national standards - Page 8816
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 6403.2-1986
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Lubricating grooves
WITHDRAWN published on 19.5.1986
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GB/T 6403.3-1986
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Knurl
WITHDRAWN published on 19.5.1986
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GB/T 6403.4-1986
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Rounding and chamferd of parts
WITHDRAWN published on 19.5.1986
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GB/T 6403.5-1986
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Relief grooves for grinding wheels
WITHDRAWN published on 19.5.1986
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GB/T 6404-1986
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Determination of sound power level for noise emitted by gear units
WITHDRAWN published on 19.5.1986
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GB 6405-1986
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Types of synthetic diamond and cubic boron nitride
WITHDRAWN published on 1.1.1986
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GB/T 6405-1994
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Types of synthetic diamond and cubic boron nitride
WITHDRAWN published on 20.12.1994
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GB/T 6406-1996
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Super abrasive—Grain sizes of diamond or cubic boron nitride
WITHDRAWN published on 5.7.1996
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GB 6406.1-1986
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Grain size and grain size distribution of synthetic diamond or cubic boron nitride
WITHDRAWN published on 1.1.1986
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GB 6406.2-1986
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Testing method for grain size distribution of synthetic diamond or cubic boron nitride
WITHDRAWN published on 1.1.1986
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