... the material Steel tank , Reinforced concrete tank, Masonry tank (2). According to the structure rude oil tank, fuel tanks, lubrication oil tank, animal plant oil ... gasoline, kerosene, light diesel oil, crude oil and aromatics of tank need to install the respiration valve(3).Storage of fuel ... oil, raw oil, heavy diesel oil and wax oil and heavy oil tank, needs to set vent (4) Manhole, light hole ...