Mehdin Industrial Company is one of the reliable companies in the field of designing and manufacturing all types of pressure vessels based on ASME Sec VIII Div I & II standards, types of towers both in terms of material type and in terms of different dimensions, as well as types of reactors both in terms of dimensions and In terms of service and special design conditions (very high temperature and pressure). Recently, two towers of the hexane unit with a diameter of nearly 2 meters and a height of 64 meters were built, transported and installed in one piece for the Tehran refinery, and a special reactor which is connected to three reactors is also being built for the CCR unit of the Tehran refinery. be