Ключевые слова: antique, background, black, brass, circle, classic, cogs, concept, connection, cooperation, cutout, drive, engine, gear, gears, green, icon, industry, isolated, machine, mechanics, metal, motion, moving, network, old, power, punk, retro, rotate, silo, steam, steampunk, steel, strategy, surface, team, teamwork, technology, tooth, wheel, wheels, work,