Common Issues and Solutions
Aluminium's resistance to corrosion is another significant advantage. Unlike wood, which can warp, rot, or require regular maintenance, aluminium profiles are designed to endure various weather conditions without deteriorating. This makes them ideal for applications in diverse climates, from humid coastal areas to dry, inland regions. Furthermore, the surface of aluminium can easily be treated with powder coating or anodizing, allowing for a broad spectrum of colors and finishes that can match any design theme.
6. Finials
There are two main types of vertical members for wrought iron fences. The first type, spires, are the vertical pieces of wrought iron that serve as the fence “posts.” On the other hand, pickets are the vertical elements that make up the center of a fencing panel. Where spires act as posts for the fence, pickets are welded to the fencing rails. Often, pickets will feature decorative elements.
Green Buildings: Aluminium window profiles are compatible with green building practices due to their recyclability and low maintenance needs. They can be used in eco-friendly construction projects to contribute to LEED certification and other sustainability goals.


At SHIJIAZHUANG TJJ TRADE CO.,LTD, we understand the transformative power of cast iron ornaments, which is why we offer an exquisite selection of cast iron spear points, cast iron panels, and cast iron collars to suit every taste and style. Crafted with the utmost care and attention to detail, our cast iron ornaments are designed to withstand the test of time, serving as enduring symbols of beauty and craftsmanship.
For applications with certain structural strength requirements, such as large doors and windows. It is better to choose the profile with higher tensile strength, such as: 6063-T6.
The aluminum profiles for doors and windows are made of 6-series aluminum alloy, and the aluminum-magnesium silicon is the main element of the 6-series aluminum alloy, and each element has a certain range of content. However, the price of various elements is inconsistent, and the lack of precious metal content is a major cause of poor profile quality. Only in strict proportion then can produce aluminum extrusions of excellent quality. The prepared raw materials are placed in an aluminum melting furnace to be melted, slag is discharged, cooled, and then cast aluminum ingots or bars are used for the production of aluminium profiles. If the exhaust is not ideal, the air bubbles in the aluminium profile will cause defects. The aluminium profiles for doors and windows are mainly made of 6063 grade aluminum alloy. If the aluminum extrusion manufacturer uses the national standard 6063 aluminum ingot, it will be guaranteed in terms of raw material quality.
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