... 20m Hole diameter:0.8mm-20mm Material:ss sheet,GI. High quality perforated metal mesh ( factory & ISO9001:2000)perforated metal ... diameter:0.8mm-20mm Material:ss sheet,GI.High Quality Perforated Metal MeshMaterial of perforated metal mesh : stainless steel plate, low ... brass plate, aluminum plate, nickel plate and kinds of nonmetal plates.Hole of perforated metal mesh: round, length, square, scale ...