| Project | VINH TAN URBAN AREA |
| Inventor | Hanoi Housing Development and Investment Corporation. |
| Address | Vinh City Center, Nghe An Province. |
| Role | Provide products for the project water supply and drainage system. |
| Project | VINH TAN URBAN AREA |
| Inventor | Hanoi Housing Development and Investment Corporation. |
| Address | Vinh City Center, Nghe An Province. |
| Role | Provide products for the project water supply and drainage system. |