Ключевые слова: abstract, background, barrier, border, building, closeup, concrete, construction, design, fence, frame, galvanized, gray, grid, grunge, illustration, industrial, industry, iron, isolated, material, mesh, metal, metallic, net, netting, old, pattern, protection, reinforcement, roll, rough, safety, shape, silver, site, square, steel, steel background, steel industrial, strength, structure, surface, texture, textured, wall, wallpaper, welded, white, wire,