... Metal/perforated metalMaterialCarbon steel, Aluminum, Brass, Copper.FinishPowder coated,galvanized,polished,or no finishHole shapeRound, Square, Slot, Triangle, ... Long round, Scale, Diamond, Oval, Hexangular, etcHole dia*pitch(mm)Customize,such as:2. ... With the character of winding-resisting, Ageing-resisting, flat and smooth surface, it is strong and serviceable.· Application ...