... Extruder 1,Certification:CE 2,Process material:PVC,PE,UPVC,PPR Double-Pipe Extruding Production Line/Double ExtruderPlastic Extrusion line ExtruderThe production ... separately control double-tube extruding.The diameter of the extruded pipe is from Φ20-Φ63. It can fully use the extruding ... capacity of the extruder. Even if it produces small diameter pipe, it can get great output, too.