Lawnmowers; Crank shafts for vehicle engines; Cylinders for machines; Fuel injection devices for internal combustion engines; Injectors for engines; Knives being parts of machines; Mechanical seals in the nature of sealing joints for vehicle engines; Mufflers for motors and engines; Piston rings; Pistons for cylinders; Power transmission belts for machines, motors and engines used in industrial applications; Sparking plugs for internal combustion engines