... making machinePVC pipe extrusion line is mainly used to make PVC,UPVC,CPVC,and MPVC pipe for water supplying and drainage ... 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 from 16-630mm in different thickness by changing the ...