Foshan Dolphin Metal Products Co.,LTD
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Most Popular China Factory Price Aluminium Alloy Glass Casement Window Aluminum Storm Windows
Product features and advantages
Window screen integrated structure, double frame design, super wind pressure resistance
The special double-frame structure greatly improves the overall wind pressure resistance of the windows. Multi-cavity design and excellent structural design make the product's wind pressure resistance super strong, reaching the highest level 9 of the national standard, safe and firm.
| 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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