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Standards GB - Chinese national standards - Page 7544
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 4030-1983
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Wristwatches-water resistance for general use
WITHDRAWN published on 1.1.1983
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GB 4031-1983
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Antimagnetic watches for general purpose use
WITHDRAWN published on 1.1.1983
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GB/T 4032-1983
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Wrist-chronometer with spring balance oscillator
WITHDRAWN published on 17.12.1983
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GB 4033-1983
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Mechanical watches for general use
WITHDRAWN published on 1.1.1983
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GB 4034-1983
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Mechanical alarm clock
WITHDRAWN published on 1.1.1983
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GB 4035-1983
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Mechanical clock with pendulum
WITHDRAWN published on 1.1.1983
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GB 4036-1983
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The mainspring of wristwatch
WITHDRAWN published on 1.1.1983
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GB 4037-1983
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Hair-spring of wristwatch
WITHDRAWN published on 1.1.1983
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GB 4038-1983
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Shock-absorber of wristwatch
WITHDRAWN published on 1.1.1983
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GB 4039-1983
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Horological jewels
WITHDRAWN published on 1.1.1983
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