Ключевые слова: abstract, backdrop, background, barrier, black, border, braided, cage, chain, chainlink, circle, concept, copper, dark, design, detail, detain, element, enclose, enclosure, fence, gray, grey, grid, grunge, horizontal, industrial, industry, iron, jail, keep, line, link, linkage, mesh, metal, net, netting, ornament, pattern, prison, protection, safety, seamless, security, shape, silver, space, steel, system, technology, texture, textured, wall, wallpaper, white, wire, wired,