PVC agricultural drainage pipe production machine 1. cooling water volume(m^3h):6,9,13 . ... Agricultural drainage pipe production machine PVC plastic pipe machine is specializing in manufacturing PVC,CPVC and UPVC water pipes of different ... conical (parallel) doublescrew extruder, vacuum sizing platform, tractor, cutting machine, stacker, etc. The conical (parallel) doublescrew extruder and tractor ...