my country’s aviation kerosene import and export scale has declined

aviation kerosene, also known as odorless kerosene and jet fuel, is a light petroleum product composed of different fractions of alkanes, aromatic hydrocarbons and olefin hydrocarbons. aviation kerosene has the advantages of good combustion performance, good low-temperature fluidity, high calorific value, and is not prone to coking. it is mainly used as fuel for aviation…