... -20m Hole diameter:0.8mm-20mm Material:ss sheet,GI. High quality perforated metal mesh ( factory & ISO9001:2000)perforated metal mesh ... of nonmetal plates.Hole of perforated metal mesh: round, length, square, scale hole, hexagonal hole, plum blossom and so on.Application ... , nickel plate as raw material, are: pass: Long hole, square hole, round hole, hexagonal hole, scale hole, stretching and other ...