No need to

The final product — PVC profiles [1] are made using the extrusion method. Polyvinyl chloride, along with other ingredients (softeners, plasticizers, stabilizers, as well as fillers), is heated to a state of homogeneous thick substance. Then the resulting mixture is passed through a certain form and only then, gradually cooled. Ultimately, a hollow window profile arises with built -in air chambers, which are internal jumpers. The more such cameras are mounted, the higher the heat and sound insulation of the installed window and, accordingly, there is no need to make windows, Minsk has many such proposals.