... parts outside surface section, continuous quenching, etc2.Steel, iron, copper, aluminum, gold and silver metal, such as a whole ... casting moulding, etc3.Carbide cutting head and the base of welding, measuring tools, all kinds of tools, saw kind, brass, ... saw, grinding wheel, stainless steel, gem jewelry and other welding (silver copper welding, brazing and soldering, etc.)We can also meet customers' ...