1) Advantage of sectional door: open vertically upwards,parallel to the ceiling; it can make full use of space inside.
2) Good warm keeping effect: sandwich panel, environmental protection foam material.
3) Good Seals: sealing strip around and built-in can protect door from erosion by blowing sand and rainwater.
4) Exquisite and multiple windows: provide lighting windows of various specifications, sizes and styles. It is national patent and only possessed by us.
5) Perfect balance system: the door body, motor and torsion spring are made into one to make it perfect and credible.
Entrance clear width
Entrance clear height
Top lintel clearance height
Left or right border width
Low clearance height lift