... tool welding equipment :welding coal mining tools, alloy drill bits, carbide saw blades, diamond saw blade (wheel), turbo chip, copper parts, automotive ... tool are tempering, forging, extrusion Etc, eating.3. diamond saw blades, rill tool’s welding4. drill bit, coal drill bit, ... all kinds of wooden cutters, braze high speed steel saw blades.High frequency welding machine features:1. fast speed, high ...