Cast iron drain pipe
Product Usage: 1 Vertical and horizontal drainage and permeability of highways; 2. Vertical and horizontal drainage on the back of various retaining walls and side ditches on highways; 3. Drainage of tunnels and underground passages; 4. Water supply and drainage for municipal engineering, water treatment plants, sewage treatment plants, garbage dumps, etc; 5. Drainage of rest green spaces such as golf courses, sports fields, and parks; 6. Soil and water conservation for slope development in mountainous areas; seven Underground drainage in land preparation engineering.