HEAVY DUTY DOOR
FEATURES
INSTRUCTION
![](/userfiles/images/20160125180545836.gif)
FEATURES
1. Install in factories, hospitals, airports, military bases and other high security areas to be protected. 2. Special tracks and wheels, carrying heavier and more stable. . 3. Using a large radius of the pulley and greatly reduce noise and enhance the useful time. |
INSTRUCTION
![](/userfiles/images/20160125180545836.gif)