In life, practical copper wire is used as conductor. It has good electrical conductivity and is widely used in the manufacture of wires, cables, brushes, etc.; it has good thermal conductivity and is often used to manufacture magnetic instruments and meters that must be protected from magnetic interference, such as compasses, aviation instruments, etc. It has excellent plasticity and is easy to be hot-pressed and Cold pressure processing can be made into copper materials such as pipes, rods, wires, strips, strips, plates, and foils. There are two kinds of pure copper products: smelted products and processed products.