... /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 corresponding ... from the running tunnels.Produced pipes by the production line are mainly used in wire and cable products threading ...