... 4.more lifspan Specifications of standard for 55/110 conical double screw and cylinder for pvc extruder machine: 45/97,51/105, ... 10mmFinal Products Application: We can make any specification of extruder screw barrel and injection screw barrel for Cincinnati, KRAUSS-MAFFEI, Battenfeld, Haitian, Demag, Engle, ... to answer your questions in 24 hours. plastic conical twin screw barrel for extrusion machine