Inner opening and inner inverted window
1. The appearance is simple, the frame and fan are flush, and the rounded edges highlight elegance;
2. 24mm insulation strip with outstanding insulation performance;
3. Double internally opened equal pressure drainage system with four sealed designs;
4. Standard 5mm+27A+5mm hollow glass, optional with 5mm+12A+5mm+12A+5mm large hollow glass, superior insulation, sound insulation, and thermal insulation performance;
5. Standard diamond mesh, optional 48 mesh high transparency mesh, using a press type bouncing frame, detachable yarn fan, safe and convenient.
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