China Railway Construction Heavy Industry 

China Railway Construction Heavy Industry Corporation Limited (CRCHI) is a prominent global manufacturer specializing in equipment for the underground construction and rail transit industries. The company's core product offerings include heavy machinery such as tunnel boring machines (TBMs), shaft-boring machines, drilling jumbos, and concrete sprayers. It also supplies specialized tunnel vehicles for lifting and installation tasks, along with critical rail infrastructure components like railway turnouts, clips, and fasteners. CRCHI further diversifies its product range to encompass New Austrian Tunneling Method (NATM) equipment, comprehensive rail track and maglev systems, various railway transit solutions, agricultural machinery, green building construction tools, coal mine equipment, and general construction materials. Beyond products, the company delivers a full suite of services, including design, fabrication, training, on-site support, equipment refurbishment, and spare parts provision. Established in 2007, CRCHI maintains its headquarters in Changsha, China, operating as a subsidiary under the umbrella of China Railway Construction Corporation Limited.