1. Side Frame: 98mm width; Frame Thickness: 1.2mm2. The bottom design adder shape for smooth drainage.3. This series could be three track with indoor gauze.4.The sash is connected by hook and rubber roll at the bottom sash improve the Air-tightness,Water-tightness and increase Collisionproof.5. The glass slot is 7mm, could fit in 5mm glass.6. The series can be Bay window and Splicing window.