Ключевые слова: attached, background, blue, chain, chained, color, colorful, colour, concept, connect, connection, design, element, fastened, green, hook, industrial, isolated, join, link, linkage, linked, metal, metallic, object, out, part, pattern, protection, red, rgb, safety, secure, security, stand, steel, strength, strong, symbol, system, teamwork, unique, white, yellow,