12 Mechanically, hydraulically, electro hydraulically and electrically supported steering and steering systems for private cars, lorries, buses and coaches, composed of steering gear, servo unit and parts thereof; special vehicles, track-laying vehicles, namely tractors, and self-driving working machines, namely, crawlers, tractors; steering accessories, namely, universal joints for land vehicles, bevel gears, steering columns, steering pumps, oil containers, valves, working cylinders for steering systems; steer-by-wire systems for land vehicles; worm gears for steering systems; fixed and adjustable steering columns; steering shafts, steering brakes, steering valves, intermediate steering gears; wheels, brake cylinders, disks and drums; rotational oscillation damping systems comprised of steering dampers for steering systems, hardy disks, flexible disks; land vehicle parts, namely, axles, axle systems composed of cross members, transverse control arm, trailing lik/longitudinal control arm, steering knuckle, centers, namely wheel hubs, ball joints, transverse stabilization agents, damper, suspension, steering gear and axle drives for private cars, lorries, buses and coaches, agricultural, forestry and construction machines, cranes arid special vehicles, industrial or shop trucks; fork trucks and rail cars; wheel and axle guide systems, track rods, wheel suspension elements, axle links