... extruding PVC,PE,PP pipes, sheets,profile... 4.CE Co-rotating parallel twin screw extruder (plastic extruder, plastic machine ... )Fature and structure:SJSH series building block type co-rotating twin-screw extruder mainly composed of barrel screw, ... : 12months3. Main export markets: Turkey, Ukraine, Saudi Arabia, Russia, Canada, Brazil, Iran, New Zealand and so on. Co-rotating parallel twin ...