... of producing PVC pipe with various diameter specification pvc pipe making machinePVC pipe extrusion line ... PVC,UPVC,CPVC,and MPVC pipe for water supplying and drainage ,electric pipe and so on .The line is composed by conical twin screw extruder ,pipe ... mould ,vacuum calibrator ,cooling tank ,haul off machine ,cutter ,stacker ,belling machine and so on .It can produce PVC pipe ...