窄边型材设计，增加窗扇透光性(采光面积超过整窗面积83%，比普通门窗高10%),保证良好通透性。

narrow  profile  design can reach 83% light transmittance , 10% higher than normal window.

Connecting structures are sealed with structural sealant and corner cleat process , ensuring strength and safety.

The insulating aluminum strip is coated by fluorocarbon to avoid changes in the surface of the aluminum strip for a long time.

Perfect sealing structure design, strong wind pressure resistance, suitable for balcony installation.

The sash can be easily moved by turning the handle downward in lifting state, and be stopped at any position by lifting the handle upward ,but cannot be pulled after landing.

Top guiding roller with bearing reducing friction force and achieves fluent movement with no noise.

Standard 5G+20A+5G insulating glass。