Color-coated steel sheet is a product made by first subjecting coated steel sheets (galvanized, aluminum-zinc coated, zinc-aluminum-magnesium coated) to surface chemical treatment, then applying (roll-coating) paint, and finally baking at high temperatures. It combines the mechanical strength and formability of steel sheets with excellent decorative properties and corrosion resistance. The coating has strong adhesion and can maintain a fresh appearance for a long time. The product is widely used in various industries such as construction, home appliances, home furnishings, public facilities, and transportation.