OPENFRY Fold Up High Speed Door Ref. 73.4
With OPENFRY fold up high speed door an emergency opening is obtained, still in cases of lack of electrical tension.
An ingenious system of counterbalances, practically unalterable, open the door when, through his control, it is required for it.
The use of an semielastic cable to command this maneuver causes that this one is comfortable and smooth (without bindings).
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