... PVC double-wall corrugated pipe production line, can production of PVC, PE double-wall corrugated pipe, production diameter range of ... reaming machines and so on.Double-wall corrugated pipe is PVC, PE as the main raw material processing, and smooth ... system, water transportation, ventilation systems, cable sheathing.PVC, PE double-wall corrugated pipe production line specifications: Φ90-Φ160, Φ200-Φ500, ...