Doors and windows wool top seal:

Wool anti-aging treatment, with anti-wear, anti-ultraviolet function. Floor is anti-aging, low brittleness, better polypropylene, tops the overall life and profiles the life the same.

　　Intermediate film tops with straight hair with the same excellent performance, coupled with polypropylene film, a large increase resistance to climate, and has strong protective layer to prevent air and water infiltration. With the middle of the tops of the windows with film, much better than the BSI requirements, and can reduce friction and prolong life.