Embossed aluminum coils are made by pressing diamond-shaped concave and convex patterns on the surface of the aluminum coil, and are usually used for packaging pipes or outer packaging. According to the chemical composition, embossed aluminum coils can be divided into high-purity aluminum coils, pure aluminum coils, alloy aluminum coils, composite aluminum coils and aluminum-clad aluminum coils. Common grades include 1100, 1050, 1145, 1060, 1070, 2A12, 3003, 3A21, 3004, 5A05, 5052, 5083, 6A02, 6061, 6063, 7A04, 7075, 8011, etc., the pure aluminum content of aluminum coils can reach 99.9%. Alloy aluminum coils usually contain alloy materials such as aluminum copper, aluminum manganese, aluminum silicon, etc. The production method of composite aluminum coils is made of various composite materials, aluminum clad aluminum Coil refers to wrapping a thin aluminum plate around the edge of the aluminum plate.