Ключевые слова: abstract, background, chain, circle, close, closeup, concept, conceptual, connect, connection, detail, equipment, gray, grey, heavy, ideas, image, industrial, industry, iron, isolated, join, line, link, macro, metal, metallic, object, old, power, row, secure, security, shape, shiny, silver, stainless, steel, still, strength, strong, symbol, together, tool, unite, white,