1Environmental protection as smelting 2.consumption reduction,high efficiency. 3.the monolithic application.IGBT ... quenching, hot forging, hot forming intermittent, continuous annealing; precious metals smelting.Brazing, thermal deformation, hardening, annealing, modulation, and a variety of ... , and copper tungsten alloy sintering as well as gold and silver melting induction cooper smelting equipment