Description:

1. Ventilation. The interior is turned on, so that the room is naturally circulated with the natural air, the indoor air is fresh, and the possibility of rainwater entering the room is excluded. Fresh air undoubtedly creates a comfortable living environment for people.
2. Security. The linkage hardware and handles arranged around the window sash can operate various functions indoors. When the window sash is closed, all sides of the window sash are fixed on the window frame, so the safety and anti-theft performance are excellent.
3. Easy to clean the windows. Pull the linkage handle to turn the outside of the sash into the room. Makes cleaning the outer surface of the window both convenient and safe.
4. Practicality. Avoid taking up indoor space when the inward-opening window is opened.
5. Good sealing and heat preservation performance. Through the multi-point locking around the window sash, the sealing and thermal insulation effect of the doors and windows is ensured.