2.The materials used in producing filter screen net are stainess steel fiber net,sintered stainless Steel felts,phosphorus copper nets and brass nets,etc ..Single or multi-layers filter plates Are encapsulated in nickel plated copper,aluminum or stainless steel frame indifferent shapes,Such as round ,semi-circular,rectangular,oval-shaped,crescent-shaped,ect....,and as well Gaskets in copper,aluminum or stainless steel