... plate, tinplate, inconel , titanium plate etc.Perforated Metal hole shape: Round, Square, Long round, Triangle, Diamond, Oval, ... scale hole, hexagonal hole, plum blossom and so on.Round hole shape is very popular in the market ... .Surface treatment:Galvanizing,Anodizing,powder coating,etc.Hole size(diameter) and Pitch:Hole size(diameter):0.1 to 150mmPitch : ...