Ключевые слова: aged, background, bolt, brown, close, closeup, concept, connection, construction, corroded, corrosion, decay, design, detail, dirty, element, equipment, fastening, flange, group, grunge, hardware, head, industrial, industry, iron, machine, material, metal, metallic, nut, object, old, one, pattern, rough, rusted, rusting, rusty, scratch, screw, sheet, solid, spiral, steel, surface, technology, weathered, white, worn,