Tu Van Thiet Ke Va Xay Lap Vien Thong T&T Ha Noi LTD Address: No 44, Lane 30, Tuu Liet Street, Van Dien Town, Thanh Tri District, Ha Noi City Enterprise code: 0109430346 Phone: 02385291923 Representative: Tran Van Hai Van Dien Town, Thanh Tri District, Ha Noi CityFounding date: 25 - 11 - 2020