Foshan Dolphin Metal Products Co.,LTD
Security --- Efficient --- High quality --- Standard
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Swing Door Exterior Double Swing Narrow Thin Aluminium Frame French Casement Doors
Simple exterior design
The simple and elegant design is in line with the current consumer groups' favorite, and can be matched with various styles of home design.
| 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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