... screw extruder 3.extruding PVC pipe, sheet, profile , granule ,window plastic sheet machine: The SJSZ series conical twin screw ... thermoplastic especially PVC powder into pipe , plate sheet ,film and profile ,also provide function of ... pelletizing .It also can deal with the wood plastic material .You can choose the drive motor ... sheets,profile , granule .double screw extruder plastic sheet machine