Feature
1.installed electronic rolling shutter helps to let more sunlight into the room.
2.largr range of sash size is available,width from 720-3350mm.
3.good performence of sound-proof,water-proofand heat insulation.

function:
1.well-designed handle and accessories help to move the door with ease.
2.different sashes are available from two to four sashes
3.different surface treatment is available.