QINGDAO, Jan. 11 (Xinhua) -- 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.
Guangdong has long been recognized as a key pillar of China’s economy, accounting for about one-tenth of the country's GDP. Meanwhile, Guangdong is ramping up efforts to construct an end-to-end innova ...