Cong ty Co phan Dich vu Ky thuat Vien thong - TST

Tru so chinh: So 4A-4B-4C - Vuong Thua Vu - Thanh Xuan - Ha Noi..
Phone: (+84) 04.37366984/3682241 Fax: (+84) 04.35682240
Email: tstjsc@tst.com.vn Website: http://www.tst.com.vn