The group's principal activity is carried out through two core business segments, rubber group and metal group. The rubber group produces seals used in automotive wiring systems, insulators for automotive ignition wire sets, components for medical devices and molds used to produce components for the group's customers. The metals group manufactures aluminum die castings and machine components from aluminum, brass and steel bars. These products are sold primarily to automotive suppliers, industrial equipment manufacturers and manufacturers of computer and office equipment. The rubber group and the metals group conduct substantially all of their business in the continental United States.