Ключевые слова: abstract, and, backgrounds, barbed, basketball, boundary, cage, chain, chainlink, connection, court, cut, danger, design, effect, element, equipment, fence, horizontal, illustration, industry, iron, isolated, light, link, material, mesh, metal, metallic, objects, on, out, painting, pattern, protection, rail, safety, seamless, security, shape, steel, system, texture, textured, twisted, white, wire,