... working life, wear resistance PET bottle blown machinery screwbarrel/screwbarrel for blowing bottle/single screw and ... )ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc3)PA + GF(Glass ... screw13.Gear box14.screw barrel for blowing molding machine 1, Conical twin screw extruder is special ... The conical double screw extruder system has applied computer control;3,The cooling system has applied special design, ...