The availability of cheap steel allowed larger bridges, railroads, skyscrapers, and ships. Other important steel products were steel cable, steel rod, and sheet steel, which enabled large, high-pressure boilers and high-tensile strength steel for machinery. Military equipment also improved significantly.
Answer:World War II had a profound and multifaceted impact on the American economy. Most obviously, it lifted the nation out of the Great Depression of the 1930s.
