Xinhua News | China launches energy-efficient carbon fiber metro train
A carbon fiber metro train, dubbed CETROVO 1.0, began passenger service on Friday in the port city of Qingdao in east China's Shandong Province. #XinhuaNews
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A carbon fiber metro train, dubbed CETROVO 1.0, began passenger service on Friday in the port city of Qingdao in east China's Shandong Province. #XinhuaNews