PE/PP/PVC Single Wall Corrugated Pipe Extrusion Line,Model LPBG50,Diameter ranger 16-50mm,Extruder model LSJ65/30. Single-wall corrugated pipe ... extrusion line:it mainly uses PE,PP,PVC as raw material,through the ... are mainly used in wire and cable products threading pipe,washing machine drains,vacuum cleaner,ventilation pipes,tubes,etc.