Duyen Hai LTD Address: No 233, Kham Thien Street, Tho Quan Ward, Dong Da District, Ha Noi City Enterprise code: 0101475560 Phone: 0912519771 Representative: Nguyen Van Nham Adress: Doi Hamlet, Dao Tu Commune, Tam Duong District, Vinh Phuc Province Tho Quan Ward, Dong Da District, Ha Noi CityFounding date: 26 - 4 - 2004