Eucalyptus oil: for pharmaceutical preparation of cough suppressants, mouthwash, insecticides ... could extract sweet cerebral, wood tar, creosote, pyroligneous oil, eucalyptus oil, guaiacol and other types of high value-added fine ... Pyroligneous Liquid: used in medicine, agriculture, and forestry largely.Eucalyptus oil: for pharmaceutical preparation of cough suppressants, mouthwash, insecticides, ...