Roofing Sheet, Galvanized Steel, Galvalume Steel manufacturer / supplier in China, offering Roofing Sheet Coil Dx51d Z40-Z275 Hot Dipped Galvanized Steel 0.5mm Galvalume Steel Gi Gl Coil, Manufacture 0.12-4.0mm Dx51d SGCC Z100 Z275 Zinc Coated Gi Steel Coil Hot Dipped Galvanized Steel Coil, Best Packages 9.8 15.2mm 78 mm2 12.70mm Rope Bare Galvanized Prestressing Steel Strand Optical Cables and so on.