1. The wall thickness of the main profile meets the requirements of the national profile standard GB/T8814-2004 and the building plastic window standard GB/T28887-2012.
2. The standard notch design improves the performance of the entire window, realizes flexible opening, convenient use and safe anti-theft functions.
3. The large cross-section design of the profile, the internal fan material adopts an integrated design, and the principle of equal pressure reduction between the outer frame and the internal fan improves the air tightness of the doors and windows, the torque resistance of the profile itself, and the impact of falling hammers.Ensure that doors and windows are not easily broken in cold areas.
4. The door frame adopts a three-cavity design with strong rigidity and independent drainage cavity to ensure smooth drainage under any circumstances;
5. The four corners of the window sash are made of reinforced stainless steel, and the 45-degree angle is more accurate.
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