... barrel for PET bottlemachine Specification:45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132 ... screw barrel12.Blocks screw13.Gear box14.screw barrel for blowing molding machine 1, Conical twin screw extruder is special equipment for all kinds of PVC powder extruder;2, The conical double screw extruder ...