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System doors and windows are a concept put forward by Germans. In the 1960s and 1970s, Germany had bridge cutoff aluminum doors and windows. In the 1980s, after more than ten years of development of bridge cutoff aluminum doors and windows, people put forward further high standards for the performance of bridge cutoff aluminum windows. They believed that the current hardware and sealing accessories, including production processes, could not perfectly realize the sealing potential of bridge cutoff aluminum and insulating glass, They have become the short board limiting the overall performance of bridge cutoff aluminum doors and windows, so they have come up with some new ideas, that is, they want to improve hardware accessories, sealing accessories, production process and other aspects, so as to improve the overall performance of doors and windows, and the concept of system doors and windows was born.

The concept of system doors and windows is: a perfect combination of performance systems. It needs to consider a series of important functions, such as water tightness, air tightness, wind pressure resistance, mechanical strength, heat insulation, sound insulation, anti-theft, sunshade, weather resistance, and operating feel. It also needs to consider the comprehensive results of the performance of all links of equipment, profiles, accessories, glass, viscose, and seals. All requirements should be considered to form a set of building materials and accessories, A door and window scheme integrating process, auxiliary materials and installation.

Therefore, system doors and windows are not simply high-quality products. System doors and windows include their processes and installation requirements. Only when all of them meet certain standards can they be called system doors and windows. That is why people often call system doors and windows as door and window systems.

To fully understand the system doors and windows, we must first understand high-quality doors and windows. We usually believe that as long as the aluminum, glass and hardware of doors and windows are of good quality and good production process, high-performance doors and windows can be produced. However, this is not the case. High quality doors and windows can usually achieve the prominence of one or several functions, while the other functions may not be significantly improved.

What the system doors and windows solve is that all the performances are very good at the same time, reaching a high standard. In this way, it is not simple to use good materials, but good technology. Each link such as various materials, production processes, auxiliary materials and installation is perfectly compatible to maximize the efficiency of each link, so as to achieve the highest comprehensive performance.