Necessity of old elevators modernization:

Elevator  is the most popular vertical transportation mean and it is the only traffic mean that is used by all age rates. If we take a glance at situation of elevators in our country we clearly know that more than 1 out of 3 of elevators of our company has worked for more than 25 years . and we notice the bad situation of old elevators , because we have not service and maintenance plan and the existing plans are not principled and above all so many of 3rd generation companies and individuals are not familiar to old systems installed 25 years ago.