Roofing Materials, Galvanized Steel, Construction Material manufacturer / supplier in China, offering Galvalume Trapezoidal Roofing Sheet Az120 15-Year Weather Resistance, Export Standard, PPGL Corrugated Roofing Sheet PVDF Coating, for Coastal High-Salt Environment, PPGL Color Coated Coil Galvalume Substrate, 20-Year Corrosion Resistance and so on.