Ключевые слова: antique, arrangement, closeup, cog, cogwheel, concept, connect, connection, design, detail, engine, engineering, equipment, factory, gear, grunge, heavy, industrial, industry, interlock, iron, machine, machinery, manufacturing, mechanical, mechanism, mesh, meshing, metal, old, part, power, retro, round, rust, rusty, steel, teamwork, technical, technology, teeth, tool, toothed, transmission, turn, unity, vintage, wheel, work,