1. This series is a newly developed door and window product with standardized design, and the entire window can be systematically assembled; Frame width 88.2mm, using 30mm C nylon insulation strip; The glass fan is 54mm wide and uses 14.8mm C-type nylon insulation strip, while the yarn fan is 30.2mm wide; The frame fan is flush; 

2. Standardize the groove of the rubber strip, and the screen window can be equipped with multi-point locks for greater stability; 

3. Hidden drainage is used outside the frame, which is aesthetically pleasing and prevents rainwater from flowing back; 

4. The frame and fan corner codes are consistent, and the angle steel pieces are widely used in the market; 

5. 5+9+5 can be used; Glass configurations such as 5+12+5, 5+9+5+9+5, 5+12+5+12+5, etc; 

6. Door and window performance: Air tightness level 6, water tightness level 5, wind pressure resistance level 7, sound insulation level 4, insulation level 6