This PVC-U double wall corrugated pipe is designed with PVC material and annular corrugated structure, which is designed to provide efficient solutions for municipal drainage, industrial wastewater treatment and agricultural irrigation systems. The product is certified to the SN8 standard for ring stiffness and can withstand external loads of 300kPa or more. The nano-coating technology on the inner wall reduces the resistance to water flow by up to 40%, which significantly improves drainage efficiency. The chemically inert nature of the product is resistant to acidic and alkaline media, and the rubber ring seals the joints for a leak-free connection, making it suitable for long-term burial and complex geological environments. The corrugated structure of the outer wall enhances the impact resistance, the ring stiffness SN8 guarantees the stability of the pipeline, and the nano-coating on the inner wall reduces the adherence of sediment and is chemically inert to prolong the service life.PVC-U double-wall corrugated pipe conforms to the concept of recycling economy through the process of recycling materials and supports trench installation to simplify the construction process, which is widely used in the urban rainwater and sewage diversion, chemical wastewater transportation and agricultural water conservation projects.PVC-U double-wall corrugated pipe is widely used in the urban rainwater and sewage diversion, chemical wastewater transmission and agricultural water conservation projects. PVC-U double-wall corrugated pipe continues to provide reliable support for sustainable piping systems with its rubber ring seal and trench installation advantages.