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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 installations—Part 413Resistance furnaces using in the experiments
Standard published on 11.9.2015
Selected format:Basic specification for electroheating and electromagnetic processing installations—Part 414: Industrial gem furnace
Standard published on 7.6.2018
Selected format:Basic specifications for electroheating installations—Part 415Aluminum annealing furnace
Standard published on 28.12.2018
Selected format:Basic specifications for electroheating and electromagnetic processing installations—Part 416: Polysilicon ingot furnace
Standard published on 30.8.2019
Selected format:Basic specifications for electroheating and electromagnetic processing installations—Part 417:Silicon carbide crystal growth installations
Standard published on 23.5.2023
Selected format:Basic specifications for electroheat installations - Part 42: Pusher resistance heating unit
Standard published on 19.7.2013
Selected format:Basic specifications for electroheat installationsPart 43: Forced convection pit resistance furnaces
Standard published on 6.5.2014
Selected format:Basic specifications for electroheat installationsPart 44: Box-type resistance furnaces
Standard published on 6.5.2014
Selected format:Basic specifications for electroheat installationsPart 45: Vacuum quenching furnace
Standard published on 6.5.2014
Selected format:Basic specifications for electroheat installationsPart 46: Resistance bell furnace
Standard published on 3.9.2014
Selected format:Latest update: 2024-12-22 (Number of items: 2 217 000)
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