Ключевые слова: abstract, background, barrier, border, boundary, cage, chain, chained, chainlink, design, detain, drawing, element, enclose, enclosure, fence, frame, galvanized, graphic, grid, industrial, industry, iron, isolated, jail, keep, link, linkage, mesh, metal, metallic, net, pattern, prison, protection, safety, seamless, security, shape, steel, system, texture, wall, wallpaper, white, wire, wired,