1 . Average lifting speed: 3 m / min. 2. Fire resistan […]
1 . Average lifting speed: 3 m / min.
2. Fire resistance time: 240 minutes.
3 . Smoke leakage: 0.18m3/min.
4 . Electric up and down, automatic locking, manual opening.
5 . Received the smoke temperature signal, the roller blind automatically forced to land.
6 . Received a signal from the fire control center, can be forced to the end or stop at any position