Quality Assurance
After more than ten years of technical accumulation and research and development, the r&d team has formed a perfect product system. Product Quality inspection: IQC(Incoming Quality Control) , IPQ (Input Process Quality Control, FQC(Final Quality Control) .And has obtained the product test report and the authentication certificate of many countries .
Window Performance
Window Type
Lift-Sliding Door
U-value (Differ by glass types)
1.5-5.6W /m2·K
Water Tightness
800Pa
Wind Load Capacity
5000 Pa
Noise Reduction
≤35 db
Product Details
Application Cases
We have a wide range of aluminium window and door systems; Suitable for commercial, residential, leisure and healthcare applications.
Product Features
● 120,150mm frame depth
● 19-40mm insulated glass
● 2.0mm extruded aluminum thickness
● 40-120μPowder coating thickness
● German hardware for 10 years warranty.
● EPDM full sealing ensures complete weather proofing
Door Colors
DORWIN chooses high quality powder coated aluminum for its strong and durable finish, to provide 10-20 years of quality satisfaction. We offer a standard range of colors to choose from, or can create a custom color to suit your individual design needs.
Door Sizes
DORWIN believe that client's houses come in all shapes and sizes, which means that the windows in these homes also vary in shape and size. That’s why we design and build windows based on your specific requirements. So whether it’s a big home, a small home, a traditional or contemporary home, we have a solution that is just right for you.
Contact: Lily
Phone: +8613811858262
Tel: +8613811858262
Email: Lily@dorwin.cn
Add: No. 48, Government Street, Xiji Town, Tongzhou District, Beijing