Workers assemble components of a CRH380A high-speed train in the manufacturing plant of Qingdao Sifang Co. Ltd., in Qingdao, east China's Shandong Province, Jan. 3, 2014. With the highest speed of 380 km/hour, the model of CRH380A is the fastest train currently in operation in the world. The CRH380A train differs from relevant foreign products in four key aspects: locomotive external shape, bogie, car body sealing, and network control and trailing systems. It was designed according to international standards and in some areas even stricter, said Deng Xiaojun, deputy chief engineer of Qingdao Sifang. (Xinhua/Wu Kaixiang)