[电] high-frequency induction heater of furnace

gāo pín gǎn yìng jiā rè qì ㄍㄠ ㄆㄧㄣˊ ㄍㄢˇ ㄧㄥˋ ㄐㄧㄚ ㄖㄜˋ ㄑㄧˋ