Doi Quan Ly Trat Tu Do Thi Huyen Huu Lung Address: No 3, 19/8 Khu An Ninh Street, Huu Lung Town, Huu Lung District, Lang Son Province Enterprise code: 4900836852 Phone: 0982153282 Representative: Nguyen Hoang Trung Adress: Khu An Ninh, Huu Lung Town, Huu Lung District, Lang Son Province Huu Lung Town, Huu Lung District, Lang Son ProvinceFounding date: 8 - 10 - 2018