... , Aluminum,etc 2) Thickness:0.1mm-10mm 3) Aperture:0.3-10mm Round Perforated MetalWe are one of the manufacturers of ... , plywood, hipboard, density board, plastic film, etc.Hole shapes:Round, rectangular, square, triangle, hexagonal, diamond, lightly pull scale, cross ... 2"12.70mm11/16"0.033-0.127", 3/16"0.84-3.23mm, 4.76mm48.00%1/4" Hex6 ... Hex0.2850.027-0.0330.68-0.84mm76.00%3/8" Sq.9.52mm Sq.Cane«0.053-0 ...