[电] submerged-resistor iuduction furnace

shuǐ zhōng diàn zǔ tǐ gǎn yìng lú ㄕㄨㄟˇ ㄓㄨㄥ ㄉㄧㄢˋ ㄗㄨˇ ㄊㄧˇ ㄍㄢˇ ㄧㄥˋ ㄌㄨˊ