Khoa Cao Thang Address: Mach Trang Hamlet, Co Loa Commune, Dong Anh District, Ha Noi City Enterprise code: 0105392763 Phone: 0906196885 Representative: Dang Duy Thang Adress: Mach Trang Hamlet, Co Loa Commune, Dong Anh District, Ha Noi City Co Loa Commune, Dong Anh District, Ha Noi CityFounding date: 4 - 7 - 2011