#structural metal
- Argentan — A town in northwestern France, situated in the Orne department within the Normandy region, historically renowned as a major center for fine lace production (Argentan lace); also, the name of a silvery-white metallic alloy made of copper, nickel, and zinc, structurally used as an argent silver substitute in silversmithing and industrial cutlery. In a geographical and economic sense, the locality represents a historical transport hub along the Orne river, marked by medieval remains and ducal fortifications.
- Avional — A high-strength structural aluminum alloy, having copper, magnesium, and manganese as its main alloying elements, widely used in the aeronautical and aerospace industries. This metallic material is characterized by a low density, excellent mechanical properties similar to mild steel after hardening heat treatment, and optimal resistance to structural fatigue, making it ideal for airplane fuselages and components.