The pavilions B and C housed the furnaces and now are displayed many carriages (a Centoporte wagon, three Littorine, the E.623 and E.626) One important example is the n.10 of the Royal Train built by Fiat for the marriage of Umberto II of Savoy and Maria José of Belgium.
The Pavilion D housed the forges and today there are diesel locomotives, while the Pavilion E is dedicated to the cinema hall and the pavilion F showcases a selection of giant machinery from the old factory.