Cast Iron Arch Bar provided by us, is therefore perfect for a variety of industrial applications, such as pulleys, gears, wheels, and pistons. Machinability, sliding wear resistance, heat treat response, noise and vibration damping qualities are all advantages of cast iron bar and plate. Arrow slits were made using iron bars. Cast Iron Arch Bar is very easy to install as well as simple to use. When put between a door and a solid block, iron bars, like glass panes and fences, can be used to create small gaps.