How uPVC windows are made?

A lot of thought & process goes into making a uPVC window. Starting from the design to the package it gets wrapped in once it is done. A uPVC window is engineered to precision with all the worldly factors around us kept in mind. The important part is the selection of the raw materials & the temperature its being extruded in (That being the process of manufacturing a bar of the window). These determine the equality & life of the window. Then comes the machines that cut & welds your window together. They are man run machines & this requires trusted & trained hands. These being said, the supplements like glass, gaskets hardware, sealant etc., also play a major role in making your window trust worth. With so many factors in the balance, I would say leave the making to the pros & enjoy your windows.