Ключевые слова: abstract, background, barricade, barrier, beautiful, border, cage, chain, chainlink, construction, design, detain, enclose, enclosure, fence, grid, industrial, industry, iron, jail, light, line, link, mesh, metal, metallic, nature, net, old, pattern, prison, private, protection, safety, security, sky, steel, sunlight, sunrise, sunset, texture, wall, wire,