Injectors for engines; sealing joints [parts of engines]; belts for motors and engines; cylinders for machines; fans for motors and engines; control mechanisms for machines, engines or motors; automobile engine mufflers and exhaust pipes; silencers for motors and engines; oil filter; pistons for engines; radiators [cooling] for motors and engines; fuel economizers for motors and engines; anti-pollution devices for motors and engines; hydraulic controls for machines, motors and engines; valves [parts of machines]; couplings other than for land vehicles; crank shafts; connecting rods for machines, motors and engines; speed governors for machines, engines and motors; springs [parts of machines]; engine bearings for vehicles; adhesive bands for pulleys; brake pads other than for vehicles.