Ключевые слова: architecture, background, bar, blue, building, cement, concrete, construct, construction, corroded, corrosion, crane, engineer, engineering, foundation, frame, hard, heavy, industrial, industry, infrastructure, iron, labor, line, manufacturing, material, metal, metallic, new, pattern, pile, raw, reinforce, reinforced, reinforcement, reinforcing, rod, safety, silver, skyscraper, steel, strength, strong, structure, support, technology, texture, unfinished, urban, wire,