twin cone Extruder, double screw extruder twin screw extruder extruder extruderthe machine is mainly used in extruding soft and hard thermoplastics ,such as PVC,Polyethylene and others , it's used with relevant auxiliary machine ( including shaing machine head ) to produce several kinds of plastic products, for example : film ,pipe ,rod ,plate,thread , cable insulating layer ,hollow product ,it's ...