... many sets of machine parallel centralized control.induction heat treatment equipment.Main featureThe modular design uses imported IGBT solid state ... ³applicationsWelding big carts knife, a large brazing welding and other welding; a variety of quenching, hot forging, ... the workpiece surface and hardening, annealing, motors, valves, welding, tungsten, molybdenum, and copper tungsten alloy sintering as ...