Foshan Dolphin Metal Products Co.,LTD
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Cheap Replacement Latest Design Aluminum Frame Two Way Open Tilt-Turn Tilt And Turn aluminium Casement Windows
Product features and advantages
Functional variants
One piece with yarn
Inner open yarn fan + outer open glass fan, inner open yarn fan + outer upper hanging glass fan
| 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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