玻珇冈薄
The ideal combination of profile, glass and hardware has achieved a high level of sound insulation, which gives you and your family a night of quiet sleep in a noisy environment.
Anti wind pressure | 63.5∝p3<4.0 |
Airtightness | 71.0≠q1>0.5 |
Water tightness | 5500∝〉p<700 |
Sound insulation | 225∝RW+Ctr<30 |
Thermal insulation | 72.0>k≠1.6 |