Changqing street. China Railway Science and Technology Building, South Second Ring Road, Changqing Street, Baohe District, Hefei City, Anhui Province, belongs to Baohe District, Hefei City, Anhui Province. Located in the south of Hefei, it is adjacent to Wang Hu Street in the east, Shushan District in the south, Hefei Municipal Government and Cultural New District in the west and Wuhu Road Street in the north, with a total area of 23.6 square kilometers.