Engraving on a key ring is forever. The lines, points and incisions mix between spaces and give lights, reflections and tones of higher levels. There is no incarceration, there is no application on the metal but exportation. In fact, removing metal parts results in the usefulness of reading, and based on tones or vectors, the most sophisticated processes are performed, the most advanced ones from a technical and graphic point of view. An undoubtedly rich element in terms of value for promotional campaigns, merchandising, or events at the fair.