Ключевые слова: abstract, architecture, background, bar, barrier, boundary, building, cage, concrete, connection, construct, construction, design, engineering, fence, floor, frame, grunge, heavy, industrial, industry, iron, material, mesh, metal, metallic, pattern, protection, rebar, reinforce, reinforcement, reinforcing, rod, roll, rust, rusty, safety, square, stacked, steel, strength, strong, structural, structure, texture, textured, wire, wired,