タイトルまたは説明

1. Fan shaped cavity closed cross-section structure;

2. Frame and fan splicing assembly design to improve the efficiency of door and window processing and assembly;

3. Multiple color choices, different colors can be designed inside and outside;

4. Smooth frame material structure design, high window strength, firm and beautiful appearance;

5. Hollow glass configuration with excellent insulation performance;

6. Independent diamond yarn rail structure design, with good safety and anti-theft performance and aesthetic requirements

7. Reasonable combination of frame and fan, good gap sealing performance