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 several businesses such as 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 produces lightweight wheels for commercial vehicles, wheels for mining vehicles, undercarriage components for construction machinery, etc. Besides, the company provides crawler robots and synthetic mica products.