The door panel move up along the tracks during opening and eventually fully enter the head room. The door panel does not fold or roll during opening.
Shenyang Baotong Door Co. Ltd. ("Baotong Door") was founded in 1995, with registered capital of 20, 000, 000 RMB and the factory of 26, 000 sqm. Baotong Door is a specialist of developing, manufacturing and installing of hangar doors and large industrial doors. The production range includes the door products (hangar doors, lifting overhead doors, garage doors, etc), logistic docking devices and safety road blocks, etc.