... -20m Hole diameter:0.8mm-20mm Material:ss sheet,GI. High quality perforated metal mesh ( factory & ISO9001:2000)perforated metal mesh Thickness ... polished and anodizing.4. The thickness of materials is wide range from 0.3mm-8mm.5. Largest selection of hole size ... plate, copper plate, nickel plate as raw material, are: pass: Long hole, square hole, round hole, hexagonal hole, scale hole, stretching ...