... what you need at a reasonable cost.Perforated sheet metal can be made into a range of round, square, ... chemicals and oil, control noise in public.MaterialPerforated sheet metal can be made of Stainless steel, Carbon steel, Galvanized steel ... , Aluminum, Brass, nickel sheets, ect.Available shapePerforated sheet metal can be Round, square, long round, triangle, scale, diamond, rectangle ...