ролик оператор дверь, ролик открывания двери, прокатки делать

·ET-28 is a one-piece design operator which has quiet,smoothness,convenience, Durableness and reliability ·Aluminum structure ·ET-28 roller door operator provide two 4-channel remotes to control up to four differe doorsor gates. ·Comprising of the most safe and secure technology the ET operator is a must for any where ·With 2 years general warranty,5 years motor warranty. Feature: ·Powerful and quiet DC motor,quick installation ·minimal headroom required for installation ·Auto safety reverse ·Auto close ·Rolling Code ·Mechanical limits positioning ·Manual release in case of power failure ·Remote controlled courtesy LED light ·Backup battery function ·Photo Beam function