2). frame material: 50/60/70 series upvc ;

3). Available upvc brand: Conch/ Kinpeng / Rehau / Dimex / Koemmerling / Veka which has three-chamber and five-chamber ; Huapeng Aluminum-Plastic co-extrusion.

4). Profile color: white, full-color and Renolit Wood-grain color.

5). Hardware : 1) vertical hinge+windbrace+handle with driving lock/ single-point lock;2)friction hinge+handle with driving lock/ single-point lock; domestic or imported like ROTO/GU/Siegenia.

6). Glass: glass thickness range from 4mm to 30mm for three-chamber profile; 5mm to 37mm for five-chamber profile . PVC/aluminum grids are available between insulated glass as decoration.

7). Installation: by fixing plate/bulge head screw/wing.

8). Screen: folding screen and rolling-up screen

9). Sizes: 400mm to 850mm for single sash width; 400mm to 1600mm for single sash height

10). Characteristics: wide opening space, good sealing effect, elegant appearance and can be used in any construction buildings.(outward casement windows are more suitable for low or middle buildings.)