plastics single screw extruder series the diameter for the screw is from 30mm to 250mm ... be used for the PE ,PP,PVC ,PS.PA plastics single screw extruder seriesthe diameter for the screw is from 30mm ... pipe ,film ,monofilament .strapping , palte,cable ,blowingand so onThe extruder series own a lot of advantages :high efficency ,saving enery ,and ...