... .2-30mm4.ISO9001:2008MaterialCarbon SteelGalvanized SteelStainless SteelAluminumAluminum coated Steel(1)Perforate sheet material :stainless steel plate, ss302, 304, 304L, 316, 316L .(2)hole ... important use is filtration. For instance, filter, filter pipe, water and gas treatment equipment. Stainless Steel Perforated Metal sheets - Type 304Hole DiameterStaggered CentersSheet ThicknessOpen Area0 ...