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Standards GB - Chinese national standards - Page 5269
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 871-1986
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Flat round head rivets
Standard published on 2.7.1986
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GB/T 8718-2008
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The terms of carbon materials
Standard published on 5.8.2008
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GB/T 8719-2022
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General rule for packing,marking,storage,transport and quality certificates of carbonaceous material and products
Standard published on 11.7.2022
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GB/T 872-1986
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Thin head rivets
Standard published on 2.7.1986
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GB/T 8721-2019
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The test method for tensile strength of carbon materials
Standard published on 4.6.2019
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GB/T 8722-2019
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Test method for thermal conductivity of carbon materials
Standard published on 10.12.2019
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GB/T 8727-2008
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Method for determination of coking value of coal pitch products
Standard published on 19.8.2008
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GB/T 8729-2017
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Foundry coke
Standard published on 14.10.2017
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GB/T 873-1986
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Oval head semi-tubular rivets
Standard published on 2.7.1986
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GB/T 8731-2008
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Free-cutting structural steel
Standard published on 11.9.2008
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