The manufacturing technology of plastic windows has recently undergone many changes. At this time, several types of windows are produced. In our country, the most popular windows of elite and economy classes. Although externally, such products look almost the same, it is worth knowing the differences between plastic windows, except, of course, prices. The secret lies in the used double -glazed windows, in the thickness of plastic profiles and the number of bags in the frame — the more there are, the more expensive. The highest quality plastic windows are those that are assembled up to components of the same company.
