Lubricate the window’s moving parts routinely: The hinges and locks of old windows might experience unnecessary wear and tear over time, making them difficult to use and stiffer. Apply a lubricant that contains silicone to the moving elements to avoid this from happening. Simply add a very tiny amount of lubricant to the hinges and locks, and then open and close the door a few times to work the oil into the hinges and locks.
Cover Cap: A protective cap that may be added to the exterior of the window profile to prevent water ingress and enhance the window's appearance.


Cast iron is vulnerable to rusting if it does not have a protective coating of carbonized oil, a process known as seasoning.

For powder coating/anodizing/polishing: packaging+batten+steel
Durability and Strength
This process applies chemicals and electricity on the surface of extruded aluminum profile to form a relatively thick layer of oxide.
The aesthetic appeal of real spears cannot be understated. Many are adorned with intricate carvings or paintings, showcasing the artistry of their creators. These embellishments often tell stories—some depict ancestral figures, while others symbolize natural elements such as animals and plants. As a result, real spears become more than mere weapons; they become pieces of art that reflect the values and beliefs of the cultures that produced them.
What are aluminum window extrusion profiles made of?
2. Good sealing performance: aluminum doors and windows have high air tightness, water tightness, and sound insulation properties that are better than wooden doors and windows and steel doors and windows.
This anodizing method often takes place in a tank with sulfuric acid and water solution. Once anodizing process is over, you can immerse the components in an optional coloring tank to attain the ideal deep black hue.