what: perforated metal mesh which:stainless steel, carbon steel,zinc,Galvanized,Aluminum,Brass,Copper etc. the detailed description of perforated metal meshMaterial ... zinc,Galvanized,Aluminum,Brass,Copper,Plywood,Fiberboard,Rubberboard,Woodboard,Pasteboard,Al-Mg.alloyplate,,Nickel-plate,Fiber.glass,PVC.plate ,Composites.SpecificationWe ... If not, we will according to standard tolerance. perforated mesh