Dien Tu Nam Duyen Tech LTD Address: An Hoa Hamlet, Doan Bai Commune, Hiep Hoa District, Bac Giang Province Enterprise code: 2400922891 Phone: 0971629662 Representative: Vu Thi Duyen Doan Bai Commune, Hiep Hoa District, Bac Giang ProvinceFounding date: 20 - 10 - 2021