automatic sliding door 1.Material:aluminum alloy 2.Quality:high quality with competitive price 3.type:4 modes ... door, Features:1) The door opens and closes with elecricity;2) Simple device,easy installation ,moderate speed ,reliable quality,brushless mircomotor ,mircoprocessor ... is mainly used for office ,resturant ,and shop gate etc;2) It is the most applicable to match with the lock ...