Ключевые слова: abstract, aged, ancient, art, background, bond, brown, chain, chain link, close, closeup, concept, connection, design, dirty, grunge, hard, heavy, image, industrial, industry, iron, isolated, join, line, link, linked, links, links of chain, loop, metal, metallic, obsolete, old, outside, pattern, power, protection, robust, rust, rusted metal, rusty, secure, security, steel, strength, strong, surface, texture, urban,