Foshan Dolphin Metal Products Co.,LTD |
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Customized Good Quality Windows Vertical Double Glazed Aluminum Casement Window
Product features and advantages
38db sound insulation
Stay away from noise No compromises
Witness the work of the airtight era, intimate and worry-free
Four-way high-performance seal design
Standard 5G +20A+5G double-layer hollow tempered glass
304 military grade diamond yarn mesh
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 5 |
Thermal Insulation | 3.0>k>=2.5 | level 5 |
Sound Insulation | 35=<Rw+Ctr<40 | level 3 |
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