... , stretching shaped hole shaped hole punch Detailed introduction to Perforated Metal:Material: Stainless steel, aluminum, hot and cold steel, copper, PVC ... ; can be used for mechanical equipment, protective cover, ornate speaker mesh cover, food , feed mill screen used mine, mine screening, engineering ... /8Inch0.114-0.0129Inch2.89-3.28mm40.00% Decorative Perforated Metal Mesh/Punched Hole Mesh(Anping)