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