Vien luyen kim den

Vien luyen kim den, foreign name is Vien luyen kim den, original name is Viện luyện kim đen, Operations over 47 years in Research and develop experimental natural science and technology. Director: Mr/Ms. Nguyễn văn Sưa . Please contact us via address: Văn bình, Xã Văn Bình, Thuong Tin District, Ha Noi City, Viet Nam. Phone: (+84)853255, Fax: (+84)852250