Dear fairies, my family needs to replace doors and windows. 60 series broken bridge aluminum casement window or 85 series gold steel mesh integrated window, which is cost-effective, what is the differ

Dear fairies, my family needs to replace doors and windows. 60 series broken bridge aluminum casement window or 85 series gold steel mesh integrated window, which is cost-effective, what is the difference? After reading this article, I agree with the last respondent and add some knowledge about the manufacturing technology of doors and windows. I have been engaged in the door and window curtain wall industry for more than 20 years. The 60 series profile and the 85 series profile are only the difference in cavity size and performance. There are some differences between the two processes: 60 series profiles are mechanically extruded and spliced with 45-degree angle glue, which has stable sealing performance, is not easy to deform and is easy to waterproof. However, because of the cavity, 85 series profiles are generally connected by movable angle code screws, which are unstable in sealing, easy to deform and difficult to waterproof, and it is difficult to meet the standards even after silica gel treatment in the later stage. Simply put, it can't be handled in the original package. Why the cavity of diamond-shaped net integrated window profiles on the market has been evolving, indicating that the performance needs to be improved. From the earliest 80 series to the present 150 series, the 10 series has changed in just a few years. Why? No matter how good the profile is, it depends on the hardware fittings of doors and windows, which shows that users find many problems in the process of use, and the maintenance rate is high, so they can't solve the problems well in the later stage and are finally eliminated by the market. I hope my answer can help everyone!