Ключевые слова: assembly, background, bolt, close, closeup, concrete, construction, corrosion, design, detail, equipment, external, fastener, fragment, frame, gray, grey, industrial, industry, iron, large, macro, material, metal, nut, object, old, one, outdoor, part, pin, plate, repair, retro, screed, screw, steel, street, structure, surface, symbol, tool, twisted, vintage, wall, white,