Global Freight Railcar Parts Market Size, Share, Growth Analysis By Type (Box car, Autocar, Center beam, Covered hopper, Coil car, Flat car, Gondola, Open top hopper, Refrigerant boxcar, Tank cars, Others), By Component (Wheels axles and bearings, Gears, Side frames, Draft systems, Couplers & yokes, Airbrakes, Others), By Distribution Channel (Aftermarket, OEM), By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Statistics, Trends and Forecast 2025-2034