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Modern Design Swing Aluminum Interior Room Double Glass Door Casement Doors For House
Performance | Parameter | National Standard |
Wind Load Resistance | 4.5<=p3>=5.0 | level 8 |
Air Tightness | 2.5<=q1<=2.0 | level 8 |
Water Tightness | 350<=△p>=700 | level 6 |
Thermal Insulation | 3.0>k>=2.5 | level 5 |
Sound Insulation | 35=<Rw+Ctr<40 | level 4 |
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