Finials are the decorative tips that are welded on top of your wrought iron fence or gate, and they often add a classic touch to its construction. Commonly known as an urn, these architectural devices were originally designed to bring attention to the apex (or top) of walls, buildings and other structures on castles. Today many finials also grace the tops of clocks, archways, flagpoles and even bedposts!
Extrusion: The billet is heated and placed onto an extrusion press, which passes it through a die and goes through several processes to ensure it is straight, strong, and of the required quality. The extrusion process includes an automatic production line composed of ingot heating, extrusion, cooling, straightening, cutting, and other processes .