Main products cover 2-year inspection of HX electric locomotives like DJ1, HXD1, HXD1B and HXD1C, overhaul and medium repair of SS3, SS4, SS6B, SS7, SS8 and SS9 electric locomotives and overhaul and medium repair of DF4, DF5, DF7 and DF8B diesel locomotives; construction machinery products cover metro rail detectors, track inspectors, comprehensive inspectors, heavy track machines, tunnel flushing machines, engineering operation machines, heavy tractors, engineering tractors, suspension arm flatcars, electric locomotives, ballastless track construction equipment, girder carriers, girder-erecting machines, girder cranes, slab spreaders, segment erector and screw conveyer among the supporting equipment of TBM. The manufacturing and maintenance of key large components of locomotives cover various full suspension, half suspension wheelsets and diesel engine crankshafts, diesel engine body, locomotive motors, camshafts and other major components.