... /D ratio: 25:1/30:1 This machine is mainly used in extruding soft and rigid thermoplastics, such as PVC, PE, PP ... produce many kinds of plastic products, just like film, pipe, rod, plate, thread, and also, it can be used for pelletizing. Main technical ... -design machines. We are looking forward to cooperate with you.Extruder Single screw extruder(plastic extruder)