Ключевые слова: abstract, background, brass, bronze, brown, clock, cog, cogs, cogwheel, concept, connect, copper, creative, design, detail, device, dirty, engine, engineering, equipment, gear, grunge, illustration, industrial, industry, inside, machine, machinery, mechanical, mechanism, metal, metallic, motor, old, part, parts, power, precision, retro, rust, screw, steampunk, steel, technology, texture, time, vintage, wallpaper, watch, wheel,