corrugated steel sheet 1.water against, 2.Widely applicable, 3.Nice apperance,easy install,smooth drainage 4.cheaper corrugated roof steel sheetzinc corrugated roofing ... roofing sheet, corrugated roofing sheet, hot dipped galvanized sheet, roofing sheetmaterialJIS G3302 SGCC/SGCH, ASTM A653 soft quality or full hardwidth ... 4.78kg/m2, 0.7mm thickness – 6.22kg/m2 galvanized corrugated steel sheets