... the wall or roof of factory, warehouse, garage, exhibition center and cinema6) Raw materials: Cold-rolled steel, galvanized steel, galvanized ... across the width...8) Used on exterior and interior walls, roofs and soffits and on straight or curvedsurfaces with flutes horizontal or ... , Writing Board,Cold Storage,Roofing, Appliance Board, other building and industrials area. zinc corrugated roofing sheet