... 3mm Manufacturer for 10 years Perforated and punched sheet Black sheet ironIn our factory, Black sheet iron is made by high speed feed and ... quickly make exactly what you need at a reasonable cost.Black sheet iron be made into a range of round, square, ... , Galvanized steel, Aluminum, Brass, nickel sheets, ect.Available shapeBlack sheet iron can be Round, square, long round, triangle, scale, diamond, ...