Thuong Mai Va Ky Thuat Quynh Mai LTD Address: No 83B De La Thanh, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Enterprise code: 0106610365 Phone: 02437752138 Representative: Tran Thi Quynh Mai Adress: No 83B De La Thanh, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Ngoc Khanh Ward, Ba Dinh District, Ha Noi CityFounding date: 31 - 7 - 2014