Ключевые слова: abstract, background, black, brown, business, chain, circle, construction, corrosion, design, dirty, engine, engineering, equipment, factory, gear, gray, grunge, hard, heavy, industrial, industry, iron, machine, machinery, manufacture, manufacturing, mechanic, metal, metallic, old, plant, power, production, rust, rusty, shape, sheet, steel, strong, structure, surface, technology, texture, textured, tool, vintage, wheel, work,