7 Add-on parts, assembly parts and spare parts, namely, bearing housing, boundary elements, signal elements, reflectors, mirrors for vehicles as spreading machines, machines for spreading, spraying and clearing, sweeping and de-icing, especially for roads; add-on parts, assembly parts and spare parts, namely, bearing housing, boundary elements, signal elements, reflectors, mirrors for vehicles as field spreading machines; trailer-mounted apparatus, namely, plows, spreaders; machines for spraying, vaporizing, spreading, cleaning, sweeping and clearing and de-icing that can be mounted on vehicles and trailers for use on roads; vehicle-mounted apparatus, namely, plows, spreaders; spreaders, namely, mechanical spreaders; fertilizer spreaders; spreaders for dry and welt salt, de-icing preparations; spreaders for spreading solid and liquid materials on farms, highways, and the like; spreaders for salt, sand, and gravel ; mechanical spreaders; spreaders for de-icing mountable on trucks; runway plows; dual wing plows; blades being attachments for bulldozers; snow plow blades for vehicles; tractor mounted snow blowers; loader snow blowers; snow blowers; plow structural parts for attaching plow blades to vehicles; snow removal equipment in the nature of snow throwers; snow plows; underbody plows; rollover plows; side wings plows; front mount plows; loader mount snow blowers; chassis mount snow blowers; dump bodies in the nature of lifting and dumping machines for ballast