... 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 moulds inside and outside produces smooth uniform corrugated ... ventilation pipes,tubes,etc. PE PP PVC Single Wall Corrugated Pipe Extrusion Line