7 Manufactured rubber and synthetic rubber products and components, namely, o-rings being machine parts for hydraulic systems, actuators, power units, pumps, oil pumps, gas pumps, valves, relief valves, turbines, gearboxes, generators, engines, transmissions, filters, sensors, and connectors, none of the foregoing for use in connection with apparatus for locomotion by land, air or water; Manufactured rubber and synthetic rubber products and components, namely, pump diaphragms, roller bearings for machines