... endurance. 4.Scientific design. UPVC Window Profiles with 60,80,88 series TYPEDoor & Window Frames SERIES60mm,80mm,88mmMATERIALSUnplasticized PVC/ U-PVCTHICKNESS2 ... Life long durability;High weather resistance even in coastal areas;Impact resistance;Fire resistance;Corrosion resistance;UV stability or efficient thermal ... achitectural requirement.Products detail UPVC Window Profiles with 60,80,88 series