Ky Thuat Va Xay Dung Hoang Long LTD Address: Le Xa Hamlet, Mai Lam Commune, Dong Anh District, Ha Noi City Enterprise code: 0109906843 Phone: 0977183606 Representative: Dinh Xuan Trai Mai Lam Commune, Dong Anh District, Ha Noi CityFounding date: 15 - 2 - 2022