Are Hongjiang and Hangu District, Tianjin both located in China?
Hongjiang: Hongjiang (), formerly Qianyang County () is a county-level city in Hunan Province, China, it is under the administration of Huaihua prefecture-level City. Hangu District, Tianjin: Hangu District (), is a former district in eastern Tianjin, China; now part of Binhai New Area.
yes