Two families. According to Baidu map, there are two shops in Tanggu, Beijing Imperial Medical Center, which are located in Jinbo Road, Jiangning District, Nanjing City, Jiangsu Province and Fenghuang Street, Gulou District, Nanjing City, Jiangsu Province. Tanggu Town is located in Tianjin. Tanggu became land in the Song Dynasty, with a history of more than 800 years. Haihe River is known as the "Gate of Gyeonggi" because of its strategic position. On the eve of liberation, the south bank of Haihe River belongs to Tianjin County, and the north bank of Haihe River belongs to Ninghe County.