Color coated aluminum sheet (also known as painted aluminum sheet or pre-painted aluminum sheet), is to coating colors on the surface of aluminum sheet. Paints of coated aluminum sheet can be divided into fluorocarbon coating and polyester coating. The properties of coated aluminum sheet are pretty stable, and it can resist to humid, changes of temperature as well as extreme climate. The quality assurance can reach to 10 years. If some coated aluminum sheet be processed particularly, the quality assurance can even reach to 30 years. As for alloy number