... is very solid and full after welding.9. Suitable for heating medium size parts10.Light weight,small size, easy to ... gear parts hardened surface;4 bed machine tool of machine tool industry guide of quenching(lathe, milling machine, planer, punch, etc.)5. ... , drill head, drill pipe, coal drill bits, drill bits andother mine parts of the wind welding IGBT induction heating rod forging machine 120KW