... , 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 : ... filtering, breeding, battery, mechanical protecting, making the crafts, the meshes for the high-grade sound box, decoration, the seating for ...