Zhu Tianran (R), chief representative of China Civil Engineering Construction Corporation (CCECC) office in Serbia, and general director of Serbian Railways Infrastructure Dusan Garibovic shake hands after signing a contract on a rehabilitation project in Belgrade, Serbia, Jan. 5, 2017. Serbia signed a contract on Thursday with a Chinese rail firm on the rehabilitation of a 7.4-kilometer rail line in the Serbian capital. The deal was signed between China Civil Engineering Construction Corporation (CCECC) and Serbian Railways Infrastructure, a joint stock company for public railway infrastructure management. (Xinhua/Wang Huijuan)