2-5- دامنه فعالیت ( انگلیسی): Arya Teb Firouz Knowledge Base Company (PJS) by acquiring the technical knowledge and software for hemodialysis machine manufacturing in 2014, registered its name as the ninth hemodialysis machine manufacturer and Iran as the fifth country in the field of hemodialysis machine manufacturing. Arya Teb Firouz is the only manufacturer of hemodialysis machines in Iran and West Asia with a production capacity of 2,000 machines per year. Also, in order to complete its service chain, it has produced hemodialysis beds, central RO water purifiers and portable RO water purifiers. ATF-1022 hemodialysis machine, after conducting clinical and comparative tests compared to German “B-Braun” and “Fresenius” machines, succeeded in receiving the necessary approvals from the General Department of Monitoring and Evaluation of Medical Equipment and Necessities, Nephrology Research Center of Tehran University of Medical Sciences and the University The rest of the medical sciences have been approved by the specialized nephrology board of the country. Currently, more than 1,400 hemodialysis machines produced by this company are serving patients in more than 300 public and private centers. By sending the first export shipment to Afghanistan and installing it in the dialysis center of Afghan Aria Hospital, this company has joined the group of advanced medical equipment exporters, and until today, the company's production devices have been exported to Indonesia, Iraq, and Syria in addition to Afghanistan. The depth of 90% of the hemodialysis machine has led to the development of the knowledge and technology of manufacturing parts and modules of the hemodialysis machine, which are used in various industries. Among others, we can mention the design and production of Solenoid valve, Heparin pump, Rotary solenoid, Dosing pump.