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