Window and Door Profile save energy from those aspects? Window and Door Profile is based on polyvinyl chloride (UPVC) resin as the main raw material, plus a certain proportion of stabilizers, colorants, fillers, ultraviolet absorbers, etc., are extruded to form the material, and then cut, welded or screwed The door and window frame sashes are made into the door and window frame sashes, equipped with sealing strips, wool tops, hardware, etc.