Pure copper is a rose red metal, the surface is purple after the formation of copper oxide film, so industrial pure copper is often called red copper or electrolytic copper. The density is 8-9g/cm3 and the melting point is 1083°C. Pure copper conductivity is very good, a large number of used in the manufacture of wires, cables, brushes, etc.; Good thermal conductivity, commonly used to manufacture magnetic instruments, instruments, such as compass, aviation instruments, etc., to prevent magnetic interference; Excellent plasticity, easy to hot pressing and cold pressing processing, can be made into tubes, rods, lines, strips, belts,plates, foil and other copper materials