Ключевые слова: abstract, architecture, backgrounds, brown, buildings, concrete, construction, engineering, equipment, frame, group, heavy, industrial, industry, iron, material, metal, metallic, objects, pattern, reinforcement, ribbed, rod, rough, row, rusty, site, skein, stack, stainless, steel, stick, stiff, storage, strength, textured, toughness, warehouse, weathered, welding, wire,