Dien Tu Vien Thong Thien Dung LTD Address: Ha Hamlet, Long Son Commune, Son Dong District, Bac Giang Province Enterprise code: 2400820233 Phone: 0981434666 Representative: Nguyen Trung Dung Long Son Commune, Son Dong District, Bac Giang ProvinceFounding date: 8 - 8 - 2017