Ky Thuat Hoan Thien LTD Address: 247 Kham Thien, Dong Da District, Ha Noi City Enterprise code: 0100938671 Phone: 0245113591 Representative: Nguyen Anh Tuan Adress: 247 Kham Thien, Dong Da District, Ha Noi City Dong Da District, Ha Noi CityFounding date: 1 - 10 - 1999