... 1.design is reasonable 2.operation is stable 3. twin parallel screw PVC,PE,PP Wood-plastic Profiled Material Production Line:YF ... nine holes, etc.)For different sectional surface and molds, twin parallel (conical) screws extruder of different specifications can be chosen together ... , 6-meter, 8-meter, 11-meter, etc.With twin parallel screws extruder, it is particularly suitable for high speed extruding ...