... , stainless steel, galvanized steel, aluminum, copper, brass 2, Round/Square/hexagonal/etc 3, Screen mesh hole meshpunched hole mesh ... stainless steel, galvanized steel, aluminum, copper, brass 2, Round/Square/hexagonal/etc 3, Screen meshpunched hole mesh Punching hole ... aluminum, copper, brass and others.Hole types: round, square, staggered and decorative patterns.Perforated Sheet Uses: Screens/Filters ...