Ключевые слова: accuracy, antique, background, circle, classic, closeup, cogs, cogwheel, connection, cooperation, design, detail, electric, energy, engineering, equipment, gear, grunge, industrial, interlocked, iron, large, mechanism, metal, objects, old, part, power, precision, progress, red, reliability, retro, revival, rust, steel, symbol, technology, teeth, texture, togetherness, turning, unity, up, vintage, wheel, work,