Iran Shir factories located in Alborz industrial city of Qazvin province have a special position in terms of being close to the Tehran-Qazvin freeway and being in the communication and transit route of the north, center and west of the country. The officials and employees of Iran Shir Company deeply believe that creating more security, prosperity and peace for consumers and improving customer satisfaction are among the most important goals, and access to any benefits without realizing these two main ideals will have no meaning. They also believe that maximum consumer satisfaction will not be possible without the continuous improvement and maintenance of quality, and the effectiveness of various processes. This company has put the quality assurance management system at the top of its work for many years and has ISO 9001:2015 certificate from TUV NORD Iran-Germany. In line with the country's industrial development and the promotion of gas-burning industries, Iran's milk factories have the largest production capacity of all types of brass valves, including: gas one-quarter round ball valve (wing valve), water one-quarter round ball valve (wing valve), sliding valve gate valve), types of liquefied gas (LPG) cylinder valves, car natural gas (CNG) tank valves, compressed natural gas (CNG) storage tank valves, types of oxygen, Co2, hydrogen, etc. cylinder valves After the regulator, the locking valve is a type of gas stove valve, one-way valve, yard hose valve, collector, washing machine, radiator inlet and outlet valve, powder fire extinguisher and Co2 valve, and fire extinguishing nozzle (sprinkler). And by using the most modern production machines and having the most advanced technology to ensure more safety and quality, it has adapted itself to the national standards of Iran and the standards of international standards. The technical and laboratory equipment of this company has provided access to the latest reliability coefficients for the company's elite and skilled experts.