... metallic fusion, welding, brazing, heat penetration, annealing and quenching etc.GCYP/GZP Series Solid-state Super-audio/M.F. Induction Heating Device ... : The GGP/GZP series solid-state super-audio/M.F. induction heating device ... single AC.Power grade: 30 kW~1000kWFrequency range:1kHz~50kHz GCYP/GZP Series Solid-state Super-audio/M.F. Induction Heating Device ...