Duong Sang LTD Address: No 37 A6 Khuong Thuong, Trung Tu Ward, Trung Tu Ward, Dong Da District, Ha Noi City Enterprise code: 0102010286 Phone: 0248527657 Representative: Pham Vinh Quang Adress: No 37 A6 Khuong Thuong, Trung Tu Ward, Dong Da District, Ha Noi City Trung Tu Ward, Dong Da District, Ha Noi CityFounding date: 16 - 8 - 2006