Class 7:
piston segments; piston rings; reciprocating compressors; engine cylinders for automobiles; piston rings being engine parts; cylinder heads for engines; engine cylinder heads for land vehicles; cylinder heads for land vehicle motors; motor cylinder heads for land vehicles; fuel pumps for service stations; diesel engines for machines; gasoline pumps for automobile engines; turbogenerators; turbocompressors; turbochargers for motors; turbochargers for machines; camshafts for automobile engines; cams being parts of machines; camshafts for vehicle engines; valves for engines and motors; pistons for cylinders; soldering blow pipes, gas-operated; pneumatic pressure cylinders; cylinders for casting machines; headers being parts of vehicle exhaust systems; header pipes as part of vehicle exhaust system; engine bearings; bearings for engines; pistons for vehicle engines; engine fuel pumps; fuel pumps for engines; sealing joints [parts of engines]
