The quotation for brand-name broken bridge aluminum doors is about 200-300 yuan per square meter, and then by adding various auxiliary materials and waterproof glue costs, etc., the total price is increased to make up for the low unit price. This kind of quotation method The quotation looks very cheap and cost-effective, but it adds all kinds of miscellaneous expenses, and in the end the money spent is not much. This kind of quotation method is very tricky, and there are many places where you are not sure where to spend money. It is not recommended to choose it.

The "bridge" in the name "Broken Bridge Aluminum" refers to the "hot and cold bridge" in the material science sense, and the word "broken" means action, that is, "breaking the hot and cold bridge" .

Specifically, because aluminum alloy is a metal, it conducts heat relatively quickly, so when the indoor and outdoor temperatures are very different, aluminum alloy can become a "bridge" to transfer heat. Such materials can be used to make doors and windows. Its thermal insulation properties are not that good. The broken bridge aluminum disconnects the aluminum alloy from the middle. It uses hard plastic to connect the disconnected aluminum alloys into one body. We know that plastics have significantly worse thermal conductivity than metals, so it is not easy for heat to pass through the entire material. The material's The thermal insulation performance also becomes better, which is where the name "Broken Bridge Aluminum (Alloy)" comes from.

Extended information:

The advantages of sliding windows are simplicity, beauty, large window width, large glass block, wide field of view, high lighting rate, convenient glass cleaning, flexible use, safety and reliability. It has a long service life, opens in one plane, takes up less space, and is easy to install screens. The most commonly used ones are sliding windows.

Disadvantages: The two windows cannot be opened at the same time, and can only be opened half way at most. The ventilation is relatively poor; sometimes the sealing is also slightly poor.

Sliding windows: There are two types: left and right, up and down. Sliding windows have the advantage of not occupying indoor space, they have beautiful appearance, economical price and good sealing performance. It adopts high-grade slide rails and can be opened flexibly with a gentle push. Coupled with large pieces of glass, it not only increases indoor lighting but also improves the overall appearance of the building. The window sash has good stress-bearing condition and is not easily damaged, but the ventilation area is subject to certain restrictions.