Lien Hiep Khoa Hoc San Xuat Vat Lieu Ky Thuat Cao Address: 264 Can Hamlet, Lieu Giai Ward, Ba Dinh District, Ha Noi City Enterprise code: 0100109466 Phone: 0248325099; 0248327708 Representative: Dao Chi Thanh Adress: No 29, Alley 63, 173 Hoang Hoa Tham Lane, Ba Dinh District, Ha Noi City Lieu Giai Ward, Ba Dinh District, Ha Noi CityFounding date: 21 - 5 - 1998