＊ Life Long durability,the age of profile is over 30 years
＊ weather resistance , even in coastal areas and low-temperature
＊ Wind resistance , we use Chinese top brand hardware to ensure the windows’ safety
＊ Fire resistance ,our profile has been tested 91 minutes in the fire
＊ Sound insulation ,a good design could lower the noise more than 30 db.
＊ UV stability or efficient thermal insulation
＊ Corrosion resistance
＊ Termite resistance
＊ Impact resistance
＊ Nice extension resistance
＊ Water tightness or weather tightness
＊ Environment friendly
