Yang Haijun (2nd L), an engineer of China's CRRC Qingdao Sifang Co., Ltd, and his Argentine colleagues examine a train carriage in Llavallol, Argentina, April 11, 2017. CRRC, world's largest supplier of rail transit equipment, exported its products to 102 countries and regions with order value at 8.1 billion US dollars in 2016. May 10 marks China's first "Chinese Brands Day," which will help independent brands. (Xinhua/Martin Zabala)