... 1. Brazing categories:1.1 welding diamond saw blade, carbide saw blade welding and diamond cutting tools, grinding tools, drilling ... 3 mining tools, welding, such as "one" bits, pillar gear drill bits, dovetail coal drill bits, drill rods riveting, all kinds of shearer, a variety ... woodworking planer, milling, and welding a variety of woodworking drill. 2. Forging, rolling class2.1 The variety of hot ...