铸铁
Cast iron was also used for Maryport Lighthouse, Cumberland, in 1834. In 1836, the lighthouse at the Town Pier, Gravesend, Kent, was built from cast iron. In 1842, two cast-iron leading lights were erected at Aberdeen, with elegant tapering octagonal towers and a smooth external face. At Sunderland, another well-known example was built on the pier head in 1856.