... cinema6) Raw materials: Cold-rolled steel, galvanized steel, galvanized pre-painted sheet and aluminum sheet7) A fluted profile makes ... flutes horizontal or vertical.Color-coated corrugated steel sheet is produced by hot-galvanized steel and color-coated with ... , Sandwich Panel, Writing Board,Cold Storage,Roofing, Appliance Board, other building and industrials area. zinc corrugated roofing sheet