... receiving down payment PP, PE SINGLE WALL CORRUGATED PIPE PRODUCTION LINE SJ- Single Wall Corrugated Pipe production Line consists of extruder, die, ... pipes, etc. Application and features: SJ-||| type single wall corrugated pipe extrusion line can produce pipes for wire and cable, and ... , etc. PP,PE single wall corrugated pipe production line can be used to produce corrugated pipes of PE,PP,PVC,EVA ...