Dich Vu Thuong Mai Dung Thang LTD Address: Khu 7, Na Sam Town, Van Lang District, Lang Son Province Enterprise code: 4900714357 Phone: 0986911695 Representative: Luong Ngoc Thang Adress: Khu 7, Na Sam Town, Van Lang District, Lang Son Province Na Sam Town, Van Lang District, Lang Son ProvinceFounding date: 5 - 4 - 2012