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Standards GB - Chinese national standards - Page 7379
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 2871.3-1981
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Typical assembly of fixed stripper for cold press dies--Typical assembly for longitudinal feeding
WITHDRAWN published on 1.1.1981
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GB 2871.4-1981
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Typical assembly of fixed stripper for cold press dies--Typical assembly for cross feeding
WITHDRAWN published on 1.1.1981
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GB/T 28712.1-2012
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Types and basic parameters of heat exchangers—Part 1:Floating heat exchangers
WITHDRAWN published on 3.9.2012
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GB/T 28712.2-2012
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Types and basic parameters of heat exchangers—Part 2:Fixed tube sheet heat exchangers
WITHDRAWN published on 3.9.2012
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GB/T 28712.3-2012
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Types and basic parameters of heat exchangers—Part 3:U-tube heat exchangers
WITHDRAWN published on 3.9.2012
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GB/T 28712.4-2012
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Types and basic parameters of heat exchangers—Part 4:Vertical thermo siphon reboilers
WITHDRAWN published on 3.9.2012
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GB/T 28712.5-2012
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Types and basic parameters of heat exchangers—Part 5:Spiral heat exchangers
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GB/T 28712.6-2012
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Types and basic parameters of heat exchangers—Part 6:Air cooled heat exchangers
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GB/T 28713.2-2012
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Enhanced heat transfer elements used in tube-shell heat exchangers—Part 2:Stainless steel corrugated tubes
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GB/T 28713.3-2012
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Enhanced heat transfer elements used in tube-shell heat exchangers—Part 3:Wavy tubes
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