Use copper and aluminum rodCopper and aluminum welding material, drug-core copper Aluminium Welding Electrode wire welding temperature 420 ℃ ~ 490 ℃, easy to operate, you can use city gas, liquefied petroleum gas, acetyleneGas welding, without addition of flux, solder joints, high strength, good sealing, can brazed aluminum - aluminum, copper - aluminum. Refrigeration and air conditioning is iceBoxes, motors, transformers and other industries to achieve the ideal of copper aluminum welding materials, with conservation of resources, energy, environmental protection and many other advantages, give aHouseholds bring enormous economic and social benefits.