Makes and sells parts for specially-equipped vehicles, and carries out repairs. Also in commissioned manufacture, sales and installation of garbage treatment plants and plastic compaction equipment. Topy is a Japan's largest producer of automobile wheels. Topy entered the bar steel market in 1996. The company produces wheels at a U.S. subsidiary, and is considering making construction machinery parts locally.
Main line is air compressors for autos.
Moving into measuring equipment. Affiliated with Hitachi group. Main business is manufacture and sales of parts for Nissan vehicles. The company is particularly skilled in roll forming technology. Plastic molded parts account for about one-third of sales.