It was fear of being dominated by a Chinese behemoth that sparked an attempt by large French and German rail companies to join forces to create an European industrial champion.The merger by Alstom and Siemens was vetoed by the European Union (EU) on Thursday, but concerns about the overwhelming power of vast, often state-backed Chinese companies is not limited to the rail industry.Here are some of areas in which Chinese companies control a large piece of the global market.Rail China's st