... ... 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 ... , soda, corrosion, high temperature etc.Appication: Specially used in Double-screw Extruder.