Fumaric Acid Food Grade 99.5% Fumaric Acid Industrial Grade 99% Food Grade Fumaric Acid is produced by the oxidation of benzene ... for industrial unsaturanted resins,organic synthesis,pharmaceutical,oil,preservatives industry.Feed Grade Fumaric Acid,content of 99.5%,mainly for the ... production of feed acidifier,and feed composite acidifier,can replace antibiotics,reduce the PH ...