Galvanized Iron Perforated Metal Screen 1.thick:0.2-12mm 2.open area:10%-70% ... .5m-3m 4.shape:Round, Square Galvanized Iron Perforated Metal Screen Punch Metal /Punched Metal/perforated metalMaterialCarbon steel, Aluminum, Brass, Copper ... , Square, Slot, Triangle, Long round, Scale, Diamond, Oval, Hexangular, etcHole dia*pitch(mm)Customize,such as:2.0*5.0,3 ...