PVC double wall corrugated pipe has unique structure, high pipe strength, smooth and delicate inner wall and small friction resistance, which can make the flow volume large. During construction, the foundation does not need to be made of concrete foundation, which can adapt to any foundation; The weight is relatively light, the handling and loading are very convenient, and the construction is also convenient and fast; The pipes are connected by rubber ring socket, which is firm and reliable, and the construction quality is easy to be guaranteed; The interface is flexible, high toughness and strong ability to resist uneven settlement!