Ключевые слова: abstract, backdrop, background, barrier, cage, chain, chained, chainlink, closeup, construction, frame, geometry, gray, grid, hole, industrial, industry, iron, isolated, line, link, linkage, mesh, metal, metallic, net, nobody, pattern, protection, safety, security, shape, silver, square, stainless, steel, strong, structure, system, texture, textured, wall, wallpaper pattern, wire, wired,