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When companies want to ship their products on freight trains, they must contact freight railroad companies or freight railroads. Freight railroad companies and freight railroads are companies that own or operate freight lines and railroads that are used by freight trains. Some freight railroad companies and freight railroads operate in only one part of the country and are regional freight railroads or regional freight railroad companies. Other freight railroads are national freight railroads and national freight railroad companies that have freight lines all over the country. Some freight railroads are primarily used by freight trains that carry just one kind of freight, such as a freight railroad that is primarily used by coal trains or trains that carry coal. Some freight railroad companies only own freight trains and run their trains on rails that are owned by other freight railroads and freight railroad companies.
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