Specialized Plastic Extruder Filter Screen Supplier in Asia. 1.Material:SS302#\304#\316#\316L... 2.Usage:plastic extruder Description of Filter Discs for Double-screw Extruder:Material: SUS202, 302, 304, 304L, 316, 316L, iron wire mesh, stainless steel wire mesh, galvanized wire mesh etc.Shape:ovalSpecification: wire dia from 1" to 30".Size: from 20 to 1000 meshes.Features:resistance to acid, ...