Radiator grills of metal for automobiles; radiator grills of non-metallic materials for automobiles; combined spring and shock absorber units for vehicles; hydraulic rotary shock absorbers for vehicles; rotary shock absorbers for vehicles; shock absorber adjustment apparatus for automobiles; shock absorbers for vehicles; shock absorbing cylinders being vehicle parts; brake pads for vehicles; disc brake friction pads for vehicle braking systems; wear-resistant pads for use in brakes for automo...