what: perforated metal mesh which:stainless steel, carbon steel,zinc,Galvanized,Aluminum,Brass,Copper etc. the detailed description of perforated metal meshMaterial ... you the following material: stainless steel, carbon steel, zinc,Galvanized,Aluminum,Brass,Copper,Plywood,Fiberboard,Rubberboard,Woodboard,Pasteboard,Al-Mg.alloyplate ... . If not, we will according to standard tolerance. perforated mesh