A worker of HBIS Group Tangsteel Company patrols at the steel coil storage area in Tangshan, north China's Hebei Province, May 31, 2019. (Xinhua/Mu Yu)
Xinhua Headlines: Tech know-how modernizes China's century-old industrial city
Source: Xinhua| 2019-06-23 17:44:22|Editor: mingmei
