... module usage:harden,weld,forge,anneal and melt High Frequency Industrial HeaterApplications 1. Brazing categories:1.1 welding diamond saw blade ... .1.3 mining tools, welding, such as "one" bits, pillar gear drill bits, dovetail coal drill bits, drill rods riveting, all ... rotor on a variety of valves for the shaft, the gear pump gear, etc. quenching.3.5 Heat treatment of metal parts ...