When selecting sliding door runner wheels, consider the following factors
You can find them in various configurations such as the following;
Since aluminum profiles generally do not tend to rust, there’s no reason as to why they shouldn’t be used as window frames. Windows are always exposed to environmental factors such as heavy rain, or high-temperature conditions. Aluminum window profiles won’t easily melt or even rust, thereby allowing window openings to be adjusted as freely as possible, even for long periods.


Still, iron was the first material to let people build truly tall buildings. The Eiffel Tower, for instance, is actually built out of wrought iron. Wrought iron is strong, but also inconsistent and prone to flaws that are impossible to detect until a particular piece fails catastrophically. This is something that happened regularly throughout the nineteenth century, causing factories to collapse on the heads of the workers below and trains to derail or fall into rivers when the bridges they crossed collapsed. Steel, in comparison, is much more consistent, and as soon as people figured out how to make it in large quantities they began using it for everything. In fact, when people say “wrought iron” in reference to fencing, what they are probably referring to is steel fencing that looks like wrought iron. The confusion might also come from the fact that steel is really just iron worked at higher temperatures to ensure an even distribution of carbon.