Round Perforated Mesh Hole:round hole,square hole,etc. Quality Certification:ISO9000 Metal width:0.5m-3m Sheet length:1m-5m Round Perforated MeshPerforated metal ... , Aluminum,copper,carbon steel,Galvanized.Opening Pattern:Rectangle, square, round, triangular, blossom, hexagonal and many other special patterns according ... steel Perforated MeshEtched mesh(by Chemical Erode)Punch Hole Mesh