Topy Industries, Limited engages in the steel, automotive, industrial machinery components, power generation, and other businesses in Japan. The company provides section steel, such as H-section steel, channel steel, equal and unequal angle steel, unequal non-isopachous steel, flat steel, R-flat steel, bulb plate, ultra-thick wide flat, and deformed section steel products, including rims, super giant off-the-road rim wheels, track shoes, blades, forklift mast materials, segment components, HSST rails, and Z-steel products, as well as deformed bar steel products. It also offers steel wheels, aluminum wheels, and construction machinery wheels for passenger cars, trucks, buses, and small and large construction vehicles; and undercarriage components, such as tracks, rollers, cutting edges for motor graders, and city pads for hydraulic shovels, bulldozers, and other construction equipment, as well as parts. In addition, the company provides crawler robots and synthetic mica products. Topy Industries, Limited was founded in 1921 and is headquartered in Tokyo, Japan.