Phong Quan Ly Do Thi Huyen Hoai Duc Address: Tram Troi Town, Hoai Duc District, Ha Noi City Enterprise code: 0104883938 Phone: 02433862969 Representative: Pham Tiep Adress: Hoai Duc District, Ha Noi City Tram Troi Town, Hoai Duc District, Ha Noi CityFounding date: 25 - 8 - 2010