... screw is from 30mm to 250mm can be used for the PE ,PP,PVC ,PS.PA plastics single ... screw extruder seriesthe diameter for the screw is from 30mm to 250mmcan be used ... the material such as the PE ,PP,PVC ,PS.PA for producing pipe ,film ,monofilament .strapping , palte,cable , ... have many experts and techinician in this line and for the technical is best ,our price is also good ,we ...