Manufacture of automatic sliding doors, automatic highed doors and automatic rotating doors KolonDoor company has been established and registered in the office of registration of companies by Mr. Fattah Montazer Zohour, under the name of KolonDoor Asia Co. in 2001. The company after establishment has used its best efforts to acculturate the use of automatic doors in respect of opening and closing manners, entrance and exit traffic well as connection of door models with situation of project. The company has also taken serious steps in presentation at automatic doors. The company changed its name to KolonDoor Tech Aria in 2004 and Mr. Fattah Montazer Zohour, the promoter and managing director of the company following a series of achievements, was selected as one of the successful job creators of the country by the ministry of commerce in 2006. The most impact advantage of automatic doors is their ideal opening and closing and the most criminal factor in the business of automatic doors is the efficiency of product in the long period of time, causing the customer to pay fewer expenses during long term operation of the said doors, they also have longer life. KolonDoor Tech Aria is the Authorized DORMA Partner and have many agents around cities and provinces of Iran and it is important that the customers in cities and provinces pay attention to the sellers exclusive right when purchasing automatic doors. The customers, in order to make sure about the genuine products they have purchases, may contact head office at the company. DORMA Company is one of the largest automatic doors producer company in the world, with more than 100 years experience, having numerous agencies in many countries of the world. KolonDoor Tech Aria company with own skilled and experienced personal and the knowledge of installing the right place proposes a suitable door and provide best after sales services considering location, environment and the volume of traffic. It is to be noted that buying an automatic, s not the only important issue, in first stage because the failure of technical advisor in providing appropriate advice about suitability of door for the place it is going to be installed, may in the long terms operation of the door and a few years After Sales Services, impose multiple charges on the customers who intend to install the door in a place where it is going to be used continuously, such as banks and trade centers. Certainly a powerful After Sales Services, genuine product and its sales agency shall be significant matters for such customers. The mere confidence on unreliable companies and high purchase due to lower prices will create a great deal of problems in the future.