The surface treatment process of sheet metal parts and stamping parts is basically the same, the raw materials are basically the same, and the production equipment can be used mutually in processing and surface treatment, but there are only differences in forming methods; galvanizing and powder spraying are mostly used for surface treatment of sheet metal panels and products, especially when sheet metal panels are processed and small quantities of sheet metal parts are required, galvanizing, electrophoresis and powder spraying are used for the outer protection of products. We use galvanizing, electrophoresis, and powder coating to protect the outer layer of the products, so that the panels and products are more durable and sustainable. The surface treatment of oxidation and passivation is more widely used after aluminum alloy products and sheet metal processing.