Dien Tu Vien Thong Mien Bac LTD Address: Hamlet 5, Quang Yen Hamlet, Yen Son Commune, Quoc Oai District, Ha Noi City Enterprise code: 0107768316 Phone: 0948649999 Representative: Pham Van Trung Adress: Hamlet 5, Quang Yen Hamlet, Yen Son Commune, Quoc Oai District, Ha Noi City Yen Son Commune, Quoc Oai District, Ha Noi CityFounding date: 21 - 3 - 2017