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Standards GB - Chinese national standards - Page 7886
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 3289.39-1982
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Malleable cast iron pipe fittings--Type size--Parallel union gaskets
WITHDRAWN published on 1.1.1982
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GB/T 3289.4-1982
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Malleable cast iron pipe fittings--Type size--Reducing elbows
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GB/T 3289.5-1982
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Malleable cast iron pipe fittings--Type size--Male and female reducing elbows
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GB/T 3289.6-1982
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Malleable cast iron pipe fittings--Type size--Side outlet elbows
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GB/T 3289.7-1982
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Malleable cast iron pipe fittings--Type size--Return bends, male and female return bends, thread return bends
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GB/T 3289.8-1982
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Malleable cast iron pipe fittings--Type size--Long sweep bends 45 degree, male and female long sweep bends 45 degree, male long sweep bends 45 degree
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GB/T 3289.9-1982
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Malleable cast iron pipe fittings--Type size--U-elbows (Return bends)
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GB/T 32892-2016
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Model and parameter test regulation for photovoltaic power system
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GB/T 32895-2016
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Communication protocols for swapping battery pack of electric vehicle
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GB/T 32900-2016
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Technical specification for relaying protection of photovoltaic power station
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