when the chemical industry and electrical industry developed they involved elements of both heavy industry and light industry which was soon also true for the automotive industry and the aircraft industry heavy industry shipbuilding became the norm as steel replaced wood in modern shipbuilding large systems are often characteristic of heavy industry such as the construction of skyscrapers and large dams during the post world war ii era and the manufacture deployment of large rockets and giant wind turbines through the 21st century 
another trait of heavy industry is that it most often sells its goods to other industrial customers rather than to the end consumer heavy industries tend to be a part of the supply chain of other products as a result their stocks will often rally at the beginning of an economic upturn and are often the first to benefit from an increase in demand heavy industry in asiathe economies of many east asian countries are based on heavy industry 1 among such japanese and korean firms many are manufacturers of aerospace products and defense contractors examples include japan s fuji heavy industries and korea s hyundai rotem a joint project of hyundai heavy industries and daewoo heavy industries in the 20th century asian communist states often focused on heavy industry as an area for large investments in their planned economies this decision was motivated by fears of failing to maintain military parity with foreign powers for example the soviet union s manic industrialization in the 1930s with heavy industry as the favored emphasis sought to bring its ability to produce trucks tanks artillery aircraft and warships up to a level that would make the country a great power 2 