Ключевые слова: angle, arrangement, circle, classic, close up, closeup, cogs, cogwheel, connection, cooperation, design, detail, energy, engine, engineering, equipment, factory, gear, grunge, industrial, industry, innovation, inside, iron, large, machine, manufacturing, mesh, metal, old, part, pinion, power, retro, round, rusty, shiny, sprocket, steel, teamwork, technical, technology, toothed, transmission, turn, turning, unity, vintage, wheel, work,