Pure aluminum is very soft, intensity is small, has the very good ductility, can be pulled into filaments and pressed into a foil, a large number of used in the production of wire, cable, radio industry packing and so on.It is about two thirds of copper conductive ability, but because its density is only a third of the copper, so the quality and length of aluminium wire and copper wire, aluminum conductive ability probably twice for copper, copper and the price is low, so the field high voltage wire made from aluminium, save a lot of cost, relieve the strain on the copper. Ability of thermal conductivity of aluminum casting thirty percent larger than iron, commonly used on industrial aluminum casting manufacturing all kinds of heat exchanger, heat dissipation material, such as family use many of the cooker is made of aluminum.Nearly 50 years, aluminum casting has become one of the most widely used metal in the world.In addition, in the construction industry, because of the reliability and the anode aluminum in the air after the disposal of the excellent appearance under a large application;In the aviation and national defense department has a large number of using aluminum alloy materials;Is often used in power transmission of high strength steel wire reinforcement aluminum wire;Container transport, ordinary products, household appliances, mechanical equipment and so on all need a lot of aluminum casting.