Roofing Sheet, Galvanized Steel, Galvalume Steel manufacturer / supplier in China, offering 2mm 100X50 150X150 Hot DIP Galvanized Steel Rectangle Square Pipe, 2 Inch 3X3 1mm 2mm Thickness Hot Dipped Galvanized Square Tube, 14 Gauge 2X2 Hot Dipped Galvanized Hollow Steel Square Pipe and so on.