3. Fixed window profile
In a nutshell, the main difference between these two types of surface finish is the oxide layer. Anodized finish has a layer of oxide, whereas mill finish does not have the oxide layer.


The use of cast iron dates back to the 18th century, during the industrial revolution, when it became a popular material due to its ability to be molded into intricate designs. The combination of durability and versatility made cast iron the material of choice for many architects and artisans. Ornamental cast iron panels grew in popularity for their ability to create stunning visual focal points in buildings, balconies, gates, and fences.