... -12mm 2.open area:10%-70% 3.width:0.5m-3m 4.shape:Round, Square Galvanized Rectangular Metal Hole ... FinishPowder coated,galvanized,polished,or no finishHole shapeRound, Square, Slot, Triangle, Long round, Scale, Diamond, Oval, Hexangular, etcHole dia*pitch(mm)Customize ... . With the character of winding-resisting, Ageing-resisting, flat and smooth surface, it is strong and serviceable.· Application ...