Inward Opening Function:In winter, you can randomly adjust the air space of window to keep fresh air indoors. It not only saves the space, but also create a beautiful visual effect, and you can comfortably live through winter.  

Side Hung Opening Function:In summer, draught space in the house can be increased at will until nearside window sash is open wide (opening angle of the window can be over 180??) so as to inlet much air. Disadvantage of old aluminum plastic alloy moving window in at best 1/2 inner area opened can be avoided. The window can be back turned and it is convenient to clean the reverse side under the window glass. It is the first choice of top grade house.  

Closely Locked Function:Adopt newly developed multi-point lock, more than 10 lock tongues around the window can lock tightly the window. Effect of sound insulation, heat-insulation and safety can be achieved. It is specially applied to the environment of rainstorm, gale, noise.

Pressure-air Resistance:Simple and direct multi-point lock of KH is made of high-quality stainless steel. Around the window, there are more than 10 active and fixed lock tongues which can lock closely the window. The window sash is obviously superior to products of the same kind because of scientific design. Even under the situation of 12-grade typhoon, your house are safe and sound. The lock is firm, practical, economical and graceful.

Application Scope:Maximum Bearing??80KG;Width of Window Sash: Minimum 360MM??Maximun1500MM;Height of Window Sash: Minimum 500MM??Maximum 2400MM;Single sash, double sash and multi-sash are available.