特殊的平移推拉平移锁闭运动轨迹，通过执手操作移动扇水平方向平移挤压密封胶条，密封性好。

Special movement path of sliding-shifting-locking of the sash through operation of the handle lets the sash adhere firmly to the frame, ensuring perfect sealing effect.

The operation of the square spindle handle , within 90 degree ,can stop the sash at any position with ease.

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

Top roller sealing structure, enhances anti - lift function and ensures overall safety.

The circumferential locking points along the moving sash frame represent a relevant barrier against water-penetration, ensuring air-tightness and sound isolation , achieving sound sealing effect and high anti-wind load capacity.

Connecting structures are sealed with structural sealant+ dowel technology, ensuring structural strength and high bearing capacity.

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 coastal areas.

Standard 5G+27A+5G insulating glass.