Chamstone LTD Address: No 70, Alley 16/1, Lane 20, Huynh Thuc Khang Street, Lang Ha Ward, Dong Da District, Ha Noi City Enterprise code: 0106922477 Phone: 0983559929 Representative: Nguyen Dieu Linh Adress: No 31, Hang Bo Street, Hang Bo Ward, Hoan Kiem District, Ha Noi City Lang Ha Ward, Dong Da District, Ha Noi CityFounding date: 11 - 8 - 2015