Ключевые слова: 3d, abstract, background, barrier, black, blue, border, cage, chain, concept, connection, construction, design, digital, element, engineering, fence, frame, futuristic, graphic, grid, illustration, industrial, industry, iron, isolated, line, link, mesh, metal, metallic, model, modern, net, network, pattern, protection, render, safety, security, shape, steel, structure, technology, texture, textured, wall, wallpaper, white, wire,