Ключевые слова: background, box, brown, career, cement, city, close, concept, design, detail, electric, equipment, galvanized, grunge, hanging, industry, iron, material, metal, metallic, old, one, outdoor, outside, park, pattern, pole, protect, public, road, rust, rusted, rusty, safe, safety, service, sign, silver, steel, street, surface, texture, tin, traffic, travel, tree, urban, vintage, weathered, zinc,