2) Aluminum color
The Evolution and Benefits of Aluminum Sliding Window WheelsThe 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.
Aluminum Profiles for Windows and Doors: The Complete FAQs Guide

aluminium sliding door rollers. These rollers are sleek and modern in design, complementing the clean lines and contemporary look of aluminium sliding doors. They are available in a variety of finishes to match the overall design of the door and add a touch of sophistication to any space. Another benefit of metal security boxes is convenience. Instead of carrying your keys with you everywhere you go, you can simply leave them in the security box and access them when needed

metal security box for car keys. This is particularly useful if you engage in outdoor activities such as swimming, hiking, or biking, where carrying keys can be cumbersome.