... 2.double screw extruder 3.extruding PVC pipe, sheet, profile , granule ,window plastic sheet machine: The SJSZ series conical twin screw extruder ... , plate sheet ,film and profile ,also provide function of modifying and pelletizing .It also can deal with the wood plastic material . ... stable performace 3.extruding PVC,PE,PP pipes, sheets,profile , granule .double screw extruder plastic sheet machine