Beef and mutton. Mang Street is a small town near China in northern Vietnam, belonging to Quang Ninh Province, located in the northeast of Vietnam, bordering Beibu Gulf in the east and lang son, Hebei, Haixing, Haiphong and other provinces and cities in the west. There are beef and mutton in Mang Street, Vietnam. The Socialist Republic of Vietnam, referred to as "Vietnam", is a socialist country in Asia.