... single screw extruder,double screw extruder,two screw extruder,twin screw extruder,plas Two-stage extruder,double stage extruder, ... single screw extruder,double screw extruder,two screw extruder,twin ... control system 7) Air cooling conveying belt (18m long)8) Pelletizer9) Spare parts 11) Technical document double screw extruder,plastic ...