... be the same as the opening diameter, for example, with stainless steel sheet of 0.5mm thickness, the dimeter of perforated opening ... : The holes of perforated hole mesh is Round , Rectangular hole , Square , Triangle , Diamond , Hexagonal , oval, Cross, Slotted, scale shape and ... 10mm Size:≤1.5×3m Hole Diameter: 0.8mm-100mm Square: 1600mm*4000mm and Coil perforating The specification of perforated ...