... Panel hole:round hole,square hole,etc. Quality Certification:ISO9000 Metal width:0.5m-3m Mesh length:1m-5m Stainless Steel ... ss 304 304L,316,316L,310s, Aluminum,copper,carbon steel,Galvanized.Opening Pattern:Rectangle, square, round, triangular, blossom ... mesh.Any shape Perforated MeshStainless steel Perforated MeshEtched mesh(by Chemical Erode)Punch Hole Mesh Stainless Steel Perforated Metal Panel