... 3.wide application range 4.long servicing life Twin Screw Extruder1.SJZ series conical twin screw extruder is a highly efficient agglomerating and extruding ... ,vacuum gas exhaustion,oilcooled screws,stepless speed regulation.3.Machines of this series have wide application.With appropriate extruding heads,screws ... plastics into pipes,plates,bars,films,hollow cross-section products. Twin Screw Extruder