A tram powered by hydrogen fuel cells is seen in Tangshan, north China's Hebei Province, Oct. 27, 2017. A China-made tram powered by hydrogen fuel cells was put into commercial operation Thursday in Tangshan, north China's Hebei Province. It is the first commercial hydrogen-powered tram in the world and made by China Railway Rolling Corporation (CRRC) Tangshan Co., Ltd. (Xinhua/Wang Xiao)
