... work for 48hrs continuously 3.Low energy consumption metal quenching,annealing,forging,meltin IGBT Induction Annealing Equipment for bearing steel features:The ... forging, welding, annealing for metal material and work piece. using for metal heating,annealing,quenching,soldering ... -ZP--200200KW380V 50HZ330A2-10KHZ900*550*1800100% How the machine work:work pieces:Zhengzhou Gou's welcome you!! ...