Ключевые слова: abstract, aesthetic, background, bolt, bond, chain, circle, clock, cog, cogs, cogwheel, connection, design, detail, engine, engineering, equipment, gear, gear wheel, gears, grunge, industrial, industry, iron, machine, machineparts, machinery, mechanic, mechanical, mechanics, mechanism, metal, part, parts, pattern, power, progress, repair, retro, rust, shine, socket, steel, success, technical, technology, vintage, watch, wheel, work,