Ключевые слова: abstract, aged, antique, background, brown, circle, closeup, cog, cogwheel, corrosion, decay, design, detail, dirty, engine, engineering, equipment, gear, grunge, grungy, industrial, industry, iron, machine, machinery, macro, mechanical, mechanism, metal, metallic, old, part, power, retro, rough, round, rust, rusted, rusty, steel, structure, technical, technology, texture, tooth, transmission, vintage, weathered, wheel, work,