Nha Khoa Hoang Dung - Chi Nhanh Cong Ty TNHH San Xuat Thuong Mai Va Dich Vu Y Te Minh Hoang Tai Lang Address: Ao Dau Hamlet, Son Ha Commune, Huu Lung District, Lang Son Province Enterprise code: 2400800501-001 Phone: 0976836877 Representative: Duong Minh Hoang Adress: Kep 12 Hamlet, Huong Son Commune, Lang Giang District, Bac Giang Province Founding date: 4 - 10 - 2017