Ключевые слова: ancient, antique, background, brown, business, car, circle, close, closeup, cog, cogwheel, connection, construction, corrosion, design, detail, engine, equipment, factory, gear, gearing, grunge, industrial, industry, inside, iron, locomotive, machine, machinery, mechanism, metal, motion, old, part, power, precision, retro, round, rusty, steel, technical, technology, teeth, texture, transmission, turn, vintage, watch, wheel, work,