Roofing Sheet, Galvanized Steel, Galvalume Steel manufacturer / supplier in China, offering Zero Spangle Galvanized Coils – SGCC Grade, Variable Thickness, Chromated & Oiled, for Ceiling Channels, Normal Spangle Galvanized Coils, SGCC Grade, Various Thickness, Soft Hardness, for Door Panels, Zero Spangle Galvanized Coils – S450gd Grade, 1.5mm Thickness, Chromated & Non-Oiled, for Industrial Refrigeration and so on.