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Standards GB - Chinese national standards - Page 302
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 13555-2017
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Copper-clad polyimide film laminates for flexible printed circuits
Standard published on 29.12.2017
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GB/T 13556-2017
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Copper-clad polyester film laminates for flexible printed circuits
Standard published on 29.12.2017
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GB/T 13557-2017
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Test methods for copper-clad material for flexible printed circuits
Standard published on 31.7.2017
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GB/T 13558-2019
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Dysprosium oxide
Standard published on 30.8.2019
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GB/T 1356-2001
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Cylindrical gears for general and heavy engineering--Standard basic rack tooth profile
Standard published on 17.12.2001
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GB/T 13560-2017
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Sintered neodymium iron boron permanent magnets
Standard published on 14.10.2017
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GB 13561.1-2009
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Safety rules on port’s continuous handling facilities - Part 1: Grain silos system
Standard published on 4.6.2009
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GB/T 13561.2-2008
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Safety code on port""s continuous handling facilities - Part 2:Pneumatic shipunloader
Standard published on 27.5.2008
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GB/T 13561.3-2009
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Safety rules on port""s continuous handling facilities - Part 3: Belt conveyersmass conveyer and bucket elevator
Standard published on 31.3.2009
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GB/T 13561.6-2006
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Safety rules for port""s continuous handling equipment - Part 1: continuous handling mechanism
Standard published on 10.1.2006
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