Automatic folding doors.
We heard about automatic doors lot of times. But these automatic doors are in the form of sliding doors which are placed at the entrance of many shopping malls, not many but all now a days. These are also used in many places like hospitals, museums and so on and so forth. But there are automatic doors also available in folding doors. There is a remote control system that moves on the gear. But the most seen example of automatic folding door is the doors of public busses. They are also folding ones but they are automatic. These types of doors are not used in homes off course but can be use for commercial places.folding doors
