Ключевые слова: assembly, background, black, bolt, brown, corrosion, equipment, external, fastener, fragment, green, hand, hold, industrial, iron, macro, magnification, magnifier, magnifying glass, material, metal, nobody, nut, object, old, one, outdoor, part, repair, retro, rusty, screed, screw, steel, structure, study, surface, tool, twisted, wall,