The falling water system of light steel villas usually uses the following materials:

　　1. Aluminum alloy drainage system: Aluminum alloy drainage material has the advantages of lightness, durability, corrosion resistance, beauty, easy installation and environmental protection, and is suitable for drainage systems in various construction projects. They effectively channel and drain stormwater, protecting building facades and infrastructure while enhancing the overall appearance and value of buildings.

　　2. PVC (polyvinyl chloride) pipe: PVC pipe is a commonly used material with corrosion resistance and heat resistance, and is suitable for drainage systems. It has excellent sealing and durability, and can effectively drain rainwater and waste water.

　　3. PP (polypropylene) piping: PP piping is another common choice, with excellent chemical resistance and high temperature tolerance. It is suitable for drainage systems and has a long service life.

　　4. HDPE (high density polyethylene) pipe: HDPE pipe has excellent corrosion resistance and shock resistance. It is a high-strength pipe material that can be used in drainage systems and rainwater collection systems.

　　5. Stainless steel pipes: Stainless steel pipes have corrosion resistance, high temperature resistance and durability, and are suitable for long-term use of drainage systems. It is often used for special requirements or projects that require higher quality.

　　These materials are widely used in the water system of light steel houses, and suitable materials can be selected according to specific needs and budgets. During installation and design, it should be ensured that the quality of the material is up to standard and that it fits well with other components to ensure the reliability and effectiveness of the system.