Plastic window is not also called plastic doors and windows, how to explain is a kind
The so-called plastic window is plastic + lined steel, that is, in the plastic bag there are 1.2mm thick steel. Landlord said the two windows from the material is two categories.
Is a kind of plastic doors and windows without pure meaning.
Plastic doors and windows are made of polyvinyl chloride (PVC) resin as the main raw material, plus a certain proportion of stabilizers, colorants, fillers, UV absorbers, etc., by extrusion, and then by cutting, welding or screw Made of doors and windows frame fan, equipped with sealing tape, tops, hardware, etc., at the same time to enhance the rigidity of the profile, more than a certain length of the cavity needs to fill the steel lining (stiffeners), through the doors and windows made Called steel doors and windows steel is relatively popular and nice to say, in fact, is the strength and flame resistance of relatively high plastic
