Heavy industry refers to the sector of manufacturing that involves large-scale production and the use of heavy machinery. This includes industries such as steel production, shipbuilding, and mining. Heavy industry typically requires significant capital investment and is often associated with the extraction and processing of raw materials. The products of heavy industry are usually used as inputs for other industries or for infrastructure development. Examples include construction equipment, automobiles, and industrial machinery. Heavy industry plays a crucial role in the economy by providing essential materials and products that support various sectors, including construction and transportation.