... for hardening; for annealing; IGBT Intermediate frequency induction hot forging machine (5-20Khz) Main features 1.Adopt IGBT technology, with ... better, so it reduces th cost when producing.induction welding machine Application of Induction heating equipment: Heating (hot forging, ... and table ware, art ware, standard part, fastener, fabricated mechanical part, bronze lock, rivet, steel pin and pin.2.Hot ...