Thuong Mai Va Ky Thuat Viet Hong LTD Address: 316 Cau Giay, Quan Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0101306516 Phone: 0248334249 Quan Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 26 - 11 - 2002