... used to store Crude oil or other petroleum products.It used in oil refinery, oil field, oil and other industries. About ... 2). According to the structure rude oil tank, fuel tanks, lubrication oil tank, animal plant oil tank2.Steel tank calculation principleVertical cylindrical steel ... respiration valve(3).Storage of fuel oil, raw oil, heavy diesel oil and wax oil and heavy oil tank, needs to set vent ...