Aerial photo taken on Sept. 19, 2019 shows salt harvesters working on the Hangu salt mine in north China's Tianjin Municipality. (Xinhua/Yue Yuewei)
Aerial view of Hangu salt mine in Tianjin
Source: Xinhua| 2019-09-19 21:03:29|Editor: mingmei
Aerial photo taken on Sept. 19, 2019 shows salt harvesters working on the Hangu salt mine in north China's Tianjin Municipality. (Xinhua/Yue Yuewei)