||7112 Freight transportation
71121 Transportation of frozen or refrigerated goods
Transportation by railway of frozen or refrigerated goods, e.g./perishable food products, in specially refrigerated cars.
71122 Transportation of bulk liquids or gases
Transportation by railway of bulk liquids or gases in special tank cars. These cars may also be refrigerated.
71123 Transportation of containerized freight
Transportation by railway of individual articles and packages assembled and shipped in specially constructed shipping containers designed for ease of handling in transport.
71124 Mail transportation
Transportation of mail by railway on account of national and foreign postal authorities.
71129 Transportation of other freight
Transportation by railway of freight, not elsewhere classified.