Thiet Bi Vien Thong Thang Long Joint Stock Company Address: No 2/46/105, Doan Ke Thien Street, Mai Dich Ward, Cau Giay District, Ha Noi City Enterprise code: 0106611640 Phone: 0983557545 Representative: Do Thi Quy Adress: No 404a Nha B3 Khu Tap The Dong Xa, Mai Dich Ward, Cau Giay District, Ha Noi City Mai Dich Ward, Cau Giay District, Ha Noi CityFounding date: 31 - 7 - 2014