The advantage of coated steel sheets is that they have excellent corrosion resistance and weather resistance. The coating layer on the surface can effectively resist erosion by harsh environments such as acid, alkali, and humidity, thus extending the service life. Secondly, coated steel sheets are available in a variety of colors, are beautiful and durable, and can meet the needs of different architectural designs. In addition, the coating layer has good waterproof and anti-pollution properties, reducing maintenance costs. At the same time, the steel sheet material makes it high-strength and lightweight, easy to install, and widely used in construction, home appliances, transportation and other fields.