Lifespan is long Excellent waterproof. It is seamless Various Colors. Lifespan is long Excellent waterproof. It is seamlessVarious Colors. Resistance to strong wind. cost-effectivecorrugated sandwich panels Color Corrugated Steel Plate Color Corrugated Steel Sheet1, light weight per square meter, less than 24kg2, the installation quick, light weight, plug, install and free to cut features3, ...