... >Hole shape:round,square,diamond >Size:1*2m-2*4m >Galvanized:300g/m2 Cold rolled flat perforated sheets galvanized Perforated ... . >>>Hole patterns including round, rectangular hole, square,triangle,diamond,hexagonal, cross and othr patterns according to your drawing or ... round hole as decorations Hot dipped galvanized flat sheet used as filters Heavy flat sheet punching machine: Perforated metal sheets ...