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A shaft furnace is dismantled at Delong Steel Company in Xingtai City, north China's Hebei Province, Sept. 29, 2017, as an effort to improve the air quality. (Xinhua/Mu Yu)
A shaft furnace is dismantled at Delong Steel Company in Xingtai City, north China's Hebei Province, Sept. 29, 2017, as an effort to improve the air quality. (Xinhua/Mu Yu)