我国幅员辽阔、内陆深广、人口众多,突破交通运力“瓶颈”的政策举措正催生潜力巨大的铁路产业链。在高铁建设热潮中,我国已形成了中央、地方政府、企业多方联手加大投资的格局。“四纵四横”高铁干线建设正全面启动,地铁、城轨 China’s vast territory, deep inland, large population, breaking the transport capacity “bottleneck ” policy initiatives are the birth of a huge potential railway industry chain. In the upsurge of high-speed railway construction, China has formed a pattern in which the central government, local governments and enterprises join forces to increase investment. “Four vertical and four horizontal ” High-speed rail trunk construction is fully launched, the subway, urban rail