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Fortress Windows
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| Technical Specifications | |
|---|---|
| Frame Material | Aluminium Alloy profiles 6063-T5 |
| Surface Treatment | Powder coating, Facial mask, Rodding Compound |
| Wall Thickness | 1.4 mm, 1.8mm, 2.0mm for windows |
| Glass Options | Single (5-12mm), Hollow (5+9A+5), Laminated (6.38+6.38), Low-E |
| Hardware | Germany brand Hopo / Chinese top brand |
| Sealing | EPDM Foam Composite Adhesive Tape |




| Air tightness | Level 8 | Water tightness | Level 5 |
| Thermal insulation | Level 8 (K=1.5W/㎡·K) | Sound insulation | Level 3 (Rw+Ctr=31-dB) |
| Wind Resistance | Class 9 (P3=5.0 kPa) | Assembly | Pin + grouping glue |





Originated in 2006, our headquarters covers an area of 20,000 square meters with more than 200 employees. We are an innovative enterprise integrating production, R&D, and sales of aluminum alloy doors and windows. With a core concept of "Making doors and windows well", we commit to high-quality, high-performance systems.








