... extruder, molding machines, cutting saws, reaming machines. Double-wall corrugated pipe production line is our company's ... of PVC, PE double-wall corrugated pipe, production diameter range of 63mm-600mm. Molding machine with horizontal structure, chain drive ... , water transportation, ventilation systems, cable sheathing.PVC, PE double-wall corrugated pipe production line specifications: Φ90-Φ160, Φ ...