The original trains of K3/K4 from Beijing, capital of China, to Ulan Bator, capital of Mongolia, and to Moscow, capital of Russia, will be replaced by new high quality ones, which are produced by the Qingdao-based CSR Sifang Co. and released on Sept. 9, 2012. It is the first technological upgrade since the original trains were used 16 years ago. [liveqingdao.cn]
