1.Double pvc pipe line. 2.With famous elec. 3.Stable pipe output. 4.Long term use. 5.Full after service. PVC Double Pipe Production Line details: 1.PVC Double pipe Production Line is composed of Extruder,Two cavity molds,Two Vacuum calibration tank,Double haul off,Double cutter and Double stacker 2.AC motor,ABB frequency speed governor, Japanese RKC temperature controller,SIEMENS contactor.3. ...