Ky Thuat Va Dich Vu Duc Viet Joint Stock Company Address: No 47 Hang Buom, Hang Buom Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0102400021 Phone: 0248284232 Representative: Doan Quynh Hoa Adress: No 47 Hang Buom, Hang Buom Ward, Hoan Kiem District, Ha Noi City Hang Buom Ward, Hoan Kiem District, Ha Noi CityFounding date: 30 - 10 - 2007