Dien Tu Vien Thong Hoang Huy LTD Address: No 340, Kham Thien Street, Kham Thien Ward, Dong Da District, Ha Noi City Enterprise code: 0101377612 Phone: 0245116646 Kham Thien Ward, Dong Da District, Ha Noi CityFounding date: 27 - 6 - 2003