Air filters for automobile engines; Belts for conveyors; Emission reduction units for motors and engines, namely, catalytic converters; Emission reduction units for motors and engines, namely, PCV valves; Filter elements for fuel filters; Fuel injector parts for land and water vehicle engines; Internal combustion engine parts, namely, pistons; Marine engines and parts and fittings thereof; Oil filters for mechanical purposes; Oil pumps for land vehicles; Pressure transducers as parts of machines