Ключевые слова: abstract, apparatus, art, artwork, background, bearing, bike, car, chrome, circle, close, cog, cogwheel, construction, engine, engineering, equipment, gear, handicraft, industrial, industry, iron, machinery, mechanical, mechanics, mechanism, metal, metallic, motorbike, motorcycle, object, part, pattern, precision, retro, ring, silver, steel, transmission, used, wallpaper, weld, welding, wheel, wrought,