... of PVC double-wall corrugated pipe production line, can production of PVC, PE double-wall corrugated pipe, production diameter ... methods are online reaming, reaming machine. Double-wall corrugated pipe production line mainly including extruder, molding machines ... transportation, ventilation systems, cable sheathing.PVC, PE double-wall corrugated pipe production line specifications: Φ90-Φ160, Φ200-Φ ...