UPVC Casement Window

2. Standard notch design, which improves the performance of the whole window, realizes flexible opening, convenient use and security anti-theft function; 

3. Large cross-section design of the profile, the internal fan material adopts integrated design, and the principle of equal pressure and decompression between the outer frame and the inner fan improves the airtightness of the door and window and the torque resistance of the profile itself, the drop hammer impact, etc. To ensure that doors and windows are not easy to crack in cold regions; 

4. Reasonable drainage channel design to effectively prevent rainwater from penetrating; 

5. The four corners of the sash are made of stainless steel corner reinforcement, and the 45 degree angle is more precise;