solid plastic polymer resulting from chemical reaction of liquid molding resins by reaction injection molding in the form of profiles, boards, sheets, blocks and rods for use in manufacturing; and molded plastic substances for use in chemical piping, corrosion-resistant containers, body parts for trucks, automobiles, mass transit vehicles and military vehicles, recreation vehicles, construction equipment, instrumentation cabinets, battery cases, corrosion-resistant couplers, livestock feeders...