Do Long Joint Stock Company Address: Nha 3D5 Tap The Cong Ty Khao Sat Thiet Ke Mo, Van Quan Ward, Ha Dong District, Ha Noi City Enterprise code: 0102559252 Phone: 02433560856 Representative: Pho Thi Ngoc Van Quan Ward, Ha Dong District, Ha Noi CityFounding date: 10 - 12 - 2007