... , square, circular, angular, scale-shaped Opening Dia. : 0. 3-100mm Thinkness TOP level perforated meshpunching hole shapes: rectangular ... , square, circular, angular, scale-shaped Opening Dia. : 0 ... plate etc.Opening shapes: rectangular, square, circular, angular, scale-shaped etc, Opening Dia. : 0. 3-100mmSpec: 1 ...