Aluminum processing, processing aluminum ingots into materials by plastic processing methods, the main methods are rolling, extrusion, stretching and forging. Aluminum processing began to be industrially produced in the early 20th century. Before the 1930s, copper processing equipment was basically used, and the products were mainly used in aircraft manufacturing. After the 1960s, aluminum production has developed rapidly, with an annual growth rate of about 4 to 8%. The products are widely used in aviation, construction, transportation, electrical, chemical, packaging and daily necessities industries. The output is second only to steel, ranking second in metal materials. In the mid-1950s, China built a larger aluminum processing plant and formed a production system. The products have been serialized. There are seven alloy series, which can produce plates, strips, foils, pipes, bars, profiles, wires and forgings. (Free forgings, die forgings) eight categories of products.