Ключевые слова: abstract, architecture, art, background, blue, border, brown, cage, chain, chainlink, closeup, connection, construction, design, drawing, element, fence, frame, freedom, graphic, gray, grid, illustration, industrial, industry, iron, isolated, link, mesh, metal, metallic, net, old, pattern, prison, protection, rusty, safety, seamless, security, shape, solid, steel, texture, wall, white, wire,