GB/T 30839.32-2014
工业电热装置能耗分等 第32部分:电压型变频多台中频无心感应炉成套装置
Energy consumption grading for industrial electroheat installations.Part 32:A set of medium frequency coreless induction furnaces with a voltage type frequency converter
GBT30839.32-2014, GB30839.32-2014