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