... usage:annealing,hardening,welding,forging and melting newly IGBT precision electrical annealing equipmentEquipment Main Features1, small size, light weight, simple ... metal work pieces, such as golf ball head, cue, brass lock, hardware copper fitting, kitchen knife handle, blade, aluminum pan, ... 50-60HZ10-35KHZ650*520*1100100%600gear quenching High frequency induction electrical annealing equipment