... module usage:harden,weld,forge,anneal and melt High Frequency Industrial HeaterApplications 1. Brazing categories:1.1 welding diamond saw ... , welding, such as "one" bits, pillar gear drill bits, dovetail coal drill bits, drill rods riveting, all kinds of shearer, a variety ... various woodworking planer, milling, and welding a variety of woodworking drill. 2. Forging, rolling class2.1 The variety of hot- ...