PE Plastic Double-Wall Corrugated Pipe Extrusion Line Qingdao Hegu Wood-Plastic Machinery Co., Ltd. Base Info Model NO.：SJSBGZType：Pipe ExtruderScrew：Twin-ScrewTrademark：TongSanSpecification：Tongsan StandarOrigin：China Description Pre：PP Single-Wall Corrugated Pipe Extrusion Line Next：Pet Strapping Band Production Line
