O To Viet Thang LTD Address: Lot 6, Day No1a, Sai Dong Urban Area, Long Bien District, Ha Noi City Enterprise code: 0104825735 Phone: 02436991689 Representative: Le Duc Thang Adress: Phu Thinh Hamlet, Yen Dung District, Bac Giang Province Long Bien District, Ha Noi CityFounding date: 23 - 7 - 2010