Topy Industries (トピー工業株式会社) is a company that specializes in steel, automobile, and industrial components. It operates through two business areas: Steel and Automotive and Industrial Machinery Components. The Steel business offers various types of products, such as steel sections and bars for construction, rims for automobile and construction machinery components, and deformed section steel for track shoes. The Automotive and Industrial Machinery Components business produces lightweight wheels for commercial vehicles, wheels for mining vehicles, undercarriage components for construction machinery, etc. The company also provides crawler robots and synthetic products.