Air compressors; Cylinder heads for engines; Engine fuel pumps; Engine injectors; Fuel pumps for land vehicles; Intake and exhaust air flow vane assembly device for use in an internal combustion engine; Internal combustion engine parts, namely, piston rings; Oil pumps for land vehicles; Pistons for machines; Vehicle engine parts, namely, oil tank plugs and caps; Vehicle parts, namely, carburetors; Water pumps for land vehicles; Water pumps for use in motors and engines