Duc Nghia LTD Address: No 117 Khu Day Thep, Dong Dang Town, Cao Loc District, Lang Son Province Enterprise code: 4900280170 Phone: 0205852380 Representative: Hoang Thi Hoai Van Adress: No 117 Khu Day Thep, Dong Dang Town, Cao Loc District, Lang Son Province Dong Dang Town, Cao Loc District, Lang Son ProvinceFounding date: 4 - 8 - 2008