OILES CORPORATION is primarily engaged in the bearing equipment business. It has four business segments. The Bearing Equipment segment is engaged in the development, manufacture and sale of oilless bearings and others. The Structural Equipment segment is engaged in the development, manufacture and sale of support, seismic isolation and vibration suppression equipment, among others. The Construction Equipment segment is involved in the development, manufacture, sale, construction and maintenance of window operators, environmental equipment, and household equipment, among others. The Others segment is engaged in the purchase and sale of conduction equipment and others.