... various diameter specification pvc double pipe making machine PVC pipe extrusion line is mainly used ... to make PVC,UPVC,CPVC,and MPVC pipe for water supplying and drainage ,electric pipe and ... ,vacuum calibrator ,cooling tank ,haul off machine ,cutter ,stacker ,belling machine and so on .It can produce ... in different thickness by changing the type of machine and mould . Main Technical Parameters: Length ...