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Standards GB - Chinese national standards - Page 5700
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 1243.1-1983
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Short pitch transmission precision roller chains
WITHDRAWN published on 1.1.1983
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GB 1243.2-1983
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Short pitch transmission precision roller chains--Attachments for conveyors
WITHDRAWN published on 1.1.1983
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GB/T 12430-1990
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Basic type and size of fixings for passenger hand-rails in buses
WITHDRAWN published on 1.1.1990
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GB/T 12431-1990
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Sections of passengers hand-rails in buses
WITHDRAWN published on 1.1.1990
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GB/T 12432-1990
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Specification for passenger door cylinder of buses
WITHDRAWN published on 21.7.1990
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GB/T 12433-1990
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Testing method for passenger door cylinder of buses
WITHDRAWN published on 21.7.1990
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GB 12434-1990
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Regulations of dust control for refractory enterprises
WITHDRAWN published on 21.7.1990
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GB/T 12435-1990
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Hexogen for industrial use
WITHDRAWN published on 21.7.1990
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GB 12437-2000
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Industrial powdery explosives contained ammonium nitrate and trinitrotoluene
WITHDRAWN published on 9.5.2000
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GB/T 12439-1990
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Seismic detonating cord
WITHDRAWN published on 21.7.1990
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