... used in heat treatment, bonding, brazing, welding, forging, melting and heat fitting solution YUELON induction ... wildly used in heat treatment, bonding, brazing, welding, forging, melting and heat fitting solutions in ... brazing, high-frequency brazing, pan bottom brazing, tool head brazing, copper brazing, lead-free soldering, vacuum fusion ... precious metal casting. induction heating machine for welding