Referred to copper and aluminum wire, is a brazing material by brazing copper and aluminum can weld together, hence the name copper and aluminum flux cored wire. This flux cored wire is a new material, tentatively yet widely used in industrial, domestic and international standards relatedCast Iron Welding Electrodes not its material composition and specifications. As the price of copper is nearly three times the price of aluminum, so many manufacturers are through technological change, the internal parts from the original copper changed now with aluminum, copper outer end is still used, and this brazing material just to solve these two problems welding materials. This wire can be used in transformers, reactors, radiator, condenser, evaporator, motors, batteries and other products in copper and aluminum, copper and aluminum row, copper and aluminum, copper and aluminum welding. As the technology matures, copper and aluminum cored wire will probably be widely used in various industries.