K5N Inward Casement Window
Superior Thermal Insulation & Energy Efficiency
• Utilizes a multi-chamber broken bridge aluminum profile combined with vertical isothermal design and Triple-Seal Technology, significantly reducing heat transfer between indoor and outdoor environments.
• Equipped with high-performance Thermotech PA66 nylon insulation strips and optional LOW-E insulating glass (e.g., Low-E hollow/tempered laminated glass), which minimizes energy loss and reduces heating/cooling costs.
• Supports China's "Dual Carbon" strategy by meeting the 3-star certification standards for green building materials (highest national rating).
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Project Experience
Both in personal cases solution and project construction, DERCHl has professional guidance and experience.
- High-quality windows and doors
- Engineering quality assurance
- One-stop supply of windows and doors
- Installation tutoria
- After-sales service
- Delivery and shipment

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