... width:0.5m-3m 4.shape:Round, Square Galvanized Triangle Hole Punches Punch Metal /Punched Metal/perforated metalMaterialCarbon steel ... coated,galvanized,polished,or no finishHole shapeRound, Square, Slot, Triangle, Long round, Scale, Diamond, Oval, Hexangular, etcHole dia ... hole, hexagonal hole, scale hole, stretching and other special-shaped hole.ยท Hole style: circular hole, hexagonal hole, fish scale ...