What is a company with industry and industrial chain terminals?

For example, car companies sell tires, glass, axles, steel and engines in the stock market. . . Car companies buy these back to make cars, which is the final product. There are also those who sell mobile phones, televisions and motorcycles. . . . Anyway, as long as the things produced are sold to consumers, then the enterprise is the enterprise at the end of the industrial chain, and problems in a certain link in the upstream will affect its income.