... you the following material: stainless steel, carbon steel, zinc,Galvanized,Aluminum,Brass,Copper,Plywood,Fiberboard,Rubberboard,Woodboard,Pasteboard,Al-Mg.alloyplate ... your requirement if you tell us the exact specification.The hole shapeRound, square, long round, triangle, scale, diamond, oval, hexangular, slot ... product. If not, we will according to standard tolerance. perforated punch hole mesh