Ключевые слова: 3d, abstract, alloy, art, background, banner, bar, black, board, border, cement, city, concrete, construction, danger, dark, design, frame, gray, grunge, highway, illustration, industrial, industry, iron, layout, line, material, metal, metallic, old, paint, panel, pattern, plate, road, safety, scratch, sheet, sign, steel, street, surface, symbol, template, texture, traffic, urban, wall, yellow,