In order to improve the safety of the home, many users install anti-theft windows during construction. How to buy
aluminum anti-theft windows? Secondly, use Jianmei to understand the price of aluminum alloy anti-theft windows! How to choose aluminum alloy doors and windows? 1. When looking at the materials to buy something, you must know what materials are used. Generally speaking, for qualified products, the wall thickness of the main stress rod should be greater than 1.4 mm, the tensile strength should reach 157 Newtons per square millimeter, the yield strength should reach 108 Newtons per square millimeter, and the oxide film thickness should reach 10 microns. If it does not meet the above standards, it means that aluminum alloy doors and windows do not meet the standards and are not recommended for purchase. 2. Look at processing. Second, we have to look at its craftsmanship. In addition to the overall frame shape and craftsmanship, we should also pay attention to its details and edge treatment. Generally speaking, the sealing performance is very good, and the switch is free. Aluminum alloy doors and windows are of good quality, and inferior aluminum alloy doors and windows are mostly rough, not installed as required, poor sealing performance, not easy to switch, not only easy to leak, rain, but also easy to crack. 3. Look at the thickness. In addition, we also need to know its thickness. Generally speaking, the national standard that its thickness should be above 1.4mm is considered qualified. If its thickness is 1.0mm or 1.2mm, it means that the material is thinner and it is a product that does not meet the standard. The thickness of aluminum alloy doors and windows is low and the price is cheap, generally about 30% lower than qualified aluminum alloy doors and windows. However, the thickness of this aluminum alloy door and window does not meet the national standards, and the safety performance is difficult to guarantee, so it is not recommended to buy.
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