Ключевые слова: above, abstract, adjusting, background, board, bolt, close up, closeup, collection, disassembled, disc, environment, equipment, gear, industrial, inside screw, machinery, mechanic, mechanical, mechanics, mechanism, metal, metallic, nut, object, plate, ring, screw nut, set, steel, still life, surface, system, texture, tool, used, view, washer, wooden,