well, one of the problems that existed in bandas oil refinery was actually the failure that occurred ement lining pipes. there are lines of pipes that actually bring sea water into the refinery and they are the so-called artery of the refinery, and the leakage and interruption of this flow can disrupt the work of the refinery . this issue was happening with the oil refinery the mechanical department provided and i had the honor to be able to advance this issue together with the student mr. mohsen keshkar. we also made a couple of product samples for the refinery, and by the way, we also got the approvals for that product, which, apart from the refinery's vendors , is actually a university, and we can even sell the work of a student's thesis, which has become a technology, to the refinery. other parashgahs can use it the referee of this matter is mr. dr. morteza hosseini, one of the dear colleagues of hormozgan university, as well as dr. seyed mohammad hosseini . courtesy and respect, dear editors, welcome to the jury, at the beginning of the matter, i would like to express my gratitud