Nha Khoa Happy Smile Da Nang LTD Address: DT 605, Duong Son Hamlet, Hoa Tien Commune, Hoa Vang District, Da Nang City Enterprise code: 0402331019 Phone: 0979228717 Representative: Dao Trong Hai Hoa Tien Commune, Hoa Vang District, Da Nang CityFounding date: 2 - 4 - 2026