Dich Vu Ky Thuat Van Lang Joint Stock Company Address: No 35a, Lane 77, Bui Xuong Trach Street, Khuong Trung Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0105691918 Phone: 02462926215 Representative: Truong Thi Quynh Van Adress: Phu Xuyen Hamlet, Phu Chau Commune, Ba Vi District, Ha Noi City Khuong Trung Ward, Thanh Xuan District, Ha Noi CityFounding date: 3 - 12 - 2011