This project utilizes Donghong's dedicated PVC-UH low-pressure sewage and drainage pipes for rainwater and sewage separation. This product features high strength, excellent pressure resistance, convenient construction, and adaptability to ground settlement. It is suitable for various laying methods, including outdoor burial and pipe rack installation. It is a new and innovative low-pressure sewage and drainage pipe material. Employing an integrated steel frame sealing connection structure, installation is quick and convenient, effectively avoiding problems such as twisting, deformation, and misalignment of the post-installed rubber ring during installation. This ensures installation quality and connection sealing. Compared to other sewage and drainage pipe materials, this pipe material has higher strength and toughness, offering superior cost-effectiveness and quality advantages.

The Weishan County Urban Area Rainwater and Sewage Diversion Renovation and Watershed Management Project is a public welfare project launched in response to this conference. Led by the Weishan County Housing and Urban-Rural Development Bureau, the project has a total investment of 45.5318 million yuan and utilizes Donghong's superior product: DN315-DN630mm buried drainage PVC-U double-layer axial hollow wall pipes for rainwater and sewage diversion.

This pipe has advantages such as good sealing performance, strong drainage capacity, and convenient construction. It has four connection methods: solvent bonding, elastic sealing ring, steel skeleton integrated sealing ring, and half-type connection. The connection is safe and reliable, and can achieve zero leakage in drainage. It effectively solves the problem of overall road collapse caused by factors such as pipe rupture and water leakage.