Long Quan LTD Address: No 133, Civil Group 4, Khu Cau Do 4, Ha Cau Ward, Ha Dong District, Ha Noi City Enterprise code: 0500416831 Phone: 0917060675 Representative: Do Minh Quan Adress: Son Dong Hamlet, Dai Phu Commune, Son Duong District, Tuyen Quang Province Ha Cau Ward, Ha Dong District, Ha Noi CityFounding date: 3 - 4 - 2002