1. Windproof: After sealing, the candles are checked and the flame does not flutter. 100% sealed

2. Dustproof: After sealing, dust can no longer be seen on the window sill and protected from sand and dust. Clean

3. Noise reduction: users in downtown and highways, noise reduction by 50% -70%, quiet

4. Insulation: The indoor temperature difference before and after sealing in winter is 3-6 degrees. Keep the room cool in summer

5. Power saving: For users with air conditioners, monthly power saving is 15% -20%.

6. Save money: The cost of sealed doors and windows is one-tenth that of redoing doors and windows.