1.Aluminum round hole perforated metal 2.thickness :From 0.5mm to 4mm 3.ISO9001;2008 4.fast delivery round hole perforated metals for sale (china supplier) Byname:sieving plate,the hole has round ,length,square,scale hole, hexagonal hole.Material:low carbon steel plate,stainiess steel plate,brass plate,aluminum plate,nickel plate and various of nonmetal plate.Characteristics: the surface is ...