Corrugated roofing sheet made from GI&PPGI coil. Thickness from 0.2mm to 0.6mm.We have many model for you to choose. corrugated roofing ... and the USA. 1,Corrugated steel sheet rolled from galvanized steel sheet or pre-painted galvanized steel sheet.2,Thickness from 0.2mm ... to intall, more economic with high strength.4,The corrugated steel sheet are widely used in the warehouse, factory,garage, ...