In life, copper wire is used as a wire. Very good electrical conductivity, a large number of used in the manufacture of wires, cables, brushes, etc.; Good thermal conductivity, commonly used to manufacture magnetic instruments and meters that must prevent magnetic interference, such as compasses, aviation instruments, etc.; Excellent plasticity, easy to hot press and cold pressure processing, can be made into tubes, rods, wires, strips, strips, strips, plates, foils and other copper. Pure copper products have two types: smelted products and processed products.