... offered windows frames 1.Why choosing pvc sliding window ? •European sliding window, can open with a big area. Smooth ... life , aluminum rails are installed on the bottom frame.•Accessories are screwed into steel reinforcement, offering high security ... Namepvc windowModel65,70,80,85,90 seriesSizecustomizedGlasssingle glass or double hollow glass or triple layer glassGlass patternclear glass, tempered ...