petrochemical material that combines these with each other , compresses them, and finally it becomes omedifnepan or all of them, the basic means of our life, the car , the plane that we sit in, the ship that we are in, i said, apart from that part which is steel, the rest is the same steel, for example, you in the ships if the paint and resin that protects the steel against corrosion are the resins of the petrochemical industry , which are also special petrochemical compounds, and otherwise they will not last against corrosion, that is, the role of the petrochemical industry is the decisive role . inside the house that you see, almost all the parts of the house, in any way, you see the carpet, you see your clothes, we see the book , we also come back, petrochemical means our whole life with this role that you describe, this 95% , which is a very important and high number. so, where are we in the petrochemical industry during this? in the past 3 years, how much has this industry developed, thank god, most of the developments in our petrochemical industry go back to after the islamic revoluti