Dau Tu Xay Dung Va Dich Vu 30-4 LTD Address: Ha Noi-Dai Tu Industrial Zone, 386, Nguyen Van Linh Street, Sai Dong, Long Bien District, Ha Noi City Enterprise code: 0102324797 Phone: 0903276669 Representative: Dang Dinh Truong Adress: 34, Hong Phuc Street, Trung Truc, Ba Dinh District, Ha Noi City Sai Dong Ward, Long Bien District, Ha Noi CityFounding date: 25 - 7 - 2007