The surface of galvalume coil presents a unique smooth, flat and gorgeous starlight, and the basic color is silver-white; the special coating structure makes it have excellent corrosion resistance; the normal service life of galvalume coil can reach 25 years, and the heat resistance is very good, and it can be used in a high temperature environment of 315℃; the coating has good adhesion to the paint film, and the processing performance is good, and it can be stamped, sheared, welded, etc.; the surface conductivity is very good.