Agricultural machines; machine tools for use in the maintenance of motor vehicles; machines and apparatus for cleaning (electric); welding apparatus, gas-operated; bearings (parts of machines); shock absorbers for machines; machine wheelwork; sealing machines for industrial purposes; crank shafts; connecting rods for machines, motors and engines; valves (parts of machines); pumps (machines); pistons for cylinders; anti-pollution devices for motors and engines; fuel conversion apparatus for internal combustion engines; metalworking machines; foundry machines; elevating apparatus; mixing machines; mining machines; apparatus for machining; rolling mills; embossing machines; kitchen machines, electric; wrapping machines; food preparation machines, electromechanical; printing machines; saw benches (parts of machines); disintegrators; cylinders for machines; robots (machines); generators of electricity; mechanical control apparatus for industrial machines; cylinders for motors and engines; welding machines, electric; stands for machines; oil filters for engine lubrication systems; shock absorber plungers (parts of machines); bushings being parts of machines