Khang Duyen Address: Son Ha Hamlet, Khanh Thuong Commune, Ba Vi District, Ha Noi City Enterprise code: 0105265613 Phone: 02433967020 Representative: Nguyen Ba Khang Adress: Son Ha Hamlet, Khanh Thuong Commune, Ba Vi District, Ha Noi City Khanh Thuong Commune, Ba Vi District, Ha Noi CityFounding date: 19 - 4 - 2011