Dau Tu Va Ky Thuat Thang Long LTD Address: 301 D5 KTT Trung Tu, Trung Tu Ward, Trung Tu Ward, Dong Da District, Ha Noi City Enterprise code: 0102377774 Phone: 0248529156 Representative: Nguyen Kim Son Adress: 301 D5 KTT Trung Tu, Trung Tu Ward, Dong Da District, Ha Noi City Trung Tu Ward, Dong Da District, Ha Noi CityFounding date: 5 - 10 - 2007