... :Round Hole size: From 0.5mm to 4.0mm Panel size: 1MX2M, 1.5MX2.0M, 1.5MX2.5M ... We supply perforated metal Material: Black steel panel, galvanized steel panel, stainless steel panel, Aluminum steel panel Hole: Round, diamond, rectangular, square, ... fish scale and so on shape Panel thickness: 0. ...