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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
Basic specifications for electroheat installationsPart 33: Mains frequency induction crucible furnace for melting copper
Standard published on 3.9.2014
Selected format:Basic specifications for electroheat installations—Part 34Transistor type high frequency induction heating installation
Standard published on 9.10.2015
Selected format:Basic specifications for electroheat installations—Part 35: Medium frequency vacuum induction melting furnace
Standard published on 9.10.2015
Selected format:Basic specification for electroheating and electromagnetic processing installations—Part 36: Induction through-heating installations
Standard published on 21.5.2021
Selected format:
Basic specifications for electroheating and electromagnetic processing installations—Part 37Superconducting direct current induction through-heating installations
Execute Date: may 2025
Standard published on 26.10.2024
Selected format:Basic specifications for electroheat installations Part 4:Indirect resistance furnaces
Standard published on 26.8.2005
Selected format:Basic specifications for electroheat installations - Part 41: Mesh belt resistance heating unit
Standard published on 19.7.2013
Selected format:Basic specifications for electroheat installationsPart 410: Single crystal growing furnace
Standard published on 5.12.2014
Selected format:Basic specifications for electroheat installationsPart 411Electroheat bath furnace
Standard published on 5.12.2014
Selected format:Basic specifications for electroheat installations—Part 412Box-type quenching furnaces
Standard published on 11.9.2015
Selected format:Latest update: 2024-12-22 (Number of items: 2 217 000)
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