Tu Van Khao Sat- Thiet Ke Tan Duong LTD Address: Tieu Khu 14, Bac Ly, Dong Hoi City, Quang Binh Province Enterprise code: 3100359380 Phone: 02152842976 Representative: Dong Hoai Duong Adress: Tieu Khu 14 Bac Ly, Dong Hoi City, Quang Binh Province Bac Ly Ward, Dong Hoi City, Quang Binh ProvinceFounding date: 25 - 9 - 2006