Mehdin Industrial Company was established in Tehran in 1356. The most important field of activity of this company is the design and construction of oil, gas, petrochemical and power plant equipment. In this company, a group of experts in the field of engineering design, construction, installation, and commissioning of all types of converters Thermal shell-tube (Heat Exchanger) types of pressure vessels (Pressure Vessel and types of refinery and petrochemical towers, types of special reactors for refineries and power plants) of special materials and special services. Also, process packages such as types of Deareators and packages such as Refrigeratio, Water treatment, Injection, and types of filters and types of storage tanks (Storage tank and cryogenic tanks (senders and receivers of pellets for oil and gas pipelines, Pig launcher & receiver)) And some special power plant equipment such as Jet Condenser of combined cycle power plants is one of the main products of this company.