Tu Van Thiet Ke Ha Noi Joint Stock Company Address: Gach Hamlet, Son Dong Commune, Hoai Duc District, Ha Noi City Enterprise code: 0102211377 Phone: 0245764481 Representative: Nguyen Duc Minh Adress: No 57, Lane 41, Dong Tac Street, Kim Lien Ward, Dong Da District, Ha Noi City Son Dong Commune, Hoai Duc District, Ha Noi CityFounding date: 13 - 4 - 2007