1. Equipped with 5+12A+5 insulating glass, better sound insulation and safety.
2. European standard notch design, integrated design of inner fan material, internal transmission strip and handle transmission components, external clutch handle, multi-point lock can be set, hinged transmission shaft, opening angle 0°~90°, point wind support positioning, strong wind resistance.
3. Adopt EPDM sealing strips, broken bridge structure to make its sound insulation, heat insulation, waterproof and airtight performance better.
