... corrugated pipe, production diameter range of 63mm-600mm. Molding machine with horizontal structure, chain drive, closed water cooling, vacuum ... and high yield. Reaming methods are online reaming, reaming machine. Double-wall corrugated pipe production line mainly including extruder, ... line specifications: Φ90-Φ160, Φ200-Φ500, Φ200-Φ600 Plastic double-wall corrugated pipe production machine