The aluminum tube is a kind of high-strength hard aluminum, which can be strengthened by heat treatment. It has medium plasticity under annealing, rigid quenching and hot state, and has good spot weldability. It is often anodized and painted or an aluminum coating is added on the surface to improve Corrosion resistance. It can also be used as a mold material. Aluminum tubes are widely used in various industries, such as: automobiles, ships, aerospace, aviation, electrical appliances, agriculture, electromechanical, home furnishing, etc. Aluminum tubes are already everywhere in our lives.