... 10 years Perforated and punched metal sheets Perforated sheet metalIn our factory, Perforated sheet metal is made by high speed ... material, fine chemicals and oil, control noise in public.MaterialPerforated sheet metal can be made of Stainless steel, Carbon ... Galvanized steel, Aluminum, Brass, nickel sheets, ect.Available shapePerforated sheet metal can be Round, square, long round, triangle, scale, ...