Aluminum windows & doors A. Specification 1. Frame thichess: 3-1/4" 2. Thermal bridge or not thermal bridge 3. Glass: double glasses or laminated glasing 4: color: according to your requirement---wooden grain, white, green, etc. 5. Surface: anodizing, powder coated, electrophoretic, etc. 6. Hardware: germany made 7. Sealant strip: epdm 8. Hardware: made in german or made in china, you can choose up to your requirement. 9. Deilvery time: winthin 25 days B. Performance 1. Water tightness: 500, cn standard: gb/t 8479-2003/4 2. Air tightness:
