we make design for PE pipe production line from 16mm-630mm. and PPR pipe from 16mm-63mm our main production line is SJZ65 extruder for 16-63mm pipe production line SJ90 extruder for 75-200mm pipe production line SJ120 extruder for 250-400mm pipe production line SJ150 extruder for 450-630mm pipe production line also we are special for kinds of other plastic pipe equipment, PVC pipe from 16-630mm corrugated pipe from 16-630mm plastic pipe production line/plastic pipe extrusion line