... same as the opening diameter, for example, with stainless steel sheet of 0.5mm thickness, the dimeter of perforated ... for you ! Materials: stainless steel plate, Hot-rolled and cold-rolled carbon steel sheets, galvanized sheets, plain steel plate, iron plate, brass ... .Hole Patterns : The holes of perforated hole mesh is Round , Rectangular hole , Square , Triangle , Diamond , Hexagonal , oval, Cross, ...