door machine, door machinary , elevator door machine is a very important device in elevator used for opening and closing door. door machine, door machinary , elevator door machine is a very important device in elevator used for opening and closing the door.it contains the components as follows: instrument box, winch, connecting bar and guide rail and so on.it has the characteristics as follows: delicate manufacture, pleasure design and beautiful appearance.

elevator door machine, door machinery, elevator door machine