... ,316L,310s, Aluminum,copper,carbon steel,Galvanized.Opening Pattern:Rectangle, square, round, triangular, blossom, hexagonal and many other special patterns according to ... .Expanded metal sheet, perforated mesh,etched mesh,punch mesh.Any shape Perforated MeshStainless steel Perforated MeshEtched mesh(by Chemical Erode)Punch Hole Mesh Stainless Steel Perforated Metal Mesh