... :1.standard parts, fastener parts heating.2. drill steel, drill tool are tempering, forging, extrusion Etc, eating.3. diamond saw blades ... , rill tool’s welding4. drill bit, coal drill bit, pick bit’s ... .3. hardening the industrial of machine tool, such as : bed guide way of machine tool.4. heat treatment pliers, spanner, screwdriver, drill, ...