Do Van Hieu Address: No 43 Nguyen Phong Sac, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Enterprise code: 8767293303-001 Phone: 0964525975 Representative: Do Van Hieu Dich Vong Hau Ward, Cau Giay District, Ha Noi CityFounding date: 19 - 7 - 2022