Haman window and gauze fan integrated outward opening window, the wall thickness of the frame and fan is 1.8mm, in line with the new national standard; using the frame and fan inside and outside flush design & inclined line pressing, the surface is three-dimensional and beautiful; three adhesive strips are used to seal the opening position, better soundproof and heat insulation performance; isotherm vertical design, efficient barrier cold and heat conduction; standard R3 arc small corner protector, eliminate scratching hazard; The gauze mesh is using the bending process to connect the window frame,which is making the structure more stable, the glass adopts an internal and external pressing adhesive strip process, greatly improving the stability and wind pressure resistance of the glass; optional safety grid device, improve safety and anti-theft performance; implicit drainage structure design, with windproof and drainage cover, drainage more smoothly.