Aluminum tube is a kind of non-ferrous metal tube, which refers to a metal tubular material that is made of pure aluminum or aluminum alloy and is hollowed along its entire longitudinal length. There can be one or more closed through holes, with uniform wall thickness and cross-section, and are delivered in a straight line or in rolls. Widely used in automobiles, ships, aerospace, aviation, electrical appliances, agriculture, electromechanical, household and other industries.