... factory99%,99.5%,99.7% Industry grade,Feed grade,Ceramics grade Use:Rubber,Food,Industry high purty and good price Zinc Oxide factory 99%,99.5%,99. ... 7%1.Zinc Oxide Grades : Indirect process Zinc Oxide, Direct Process Zinc Oxide, Calcined Zinc Oxide, Feed Grade ... .Specificationproduct index Zinc Oxide99% Zinc Oxide 99.5% Zinc Oxide 99.7% centent ZnO 99% 99.5% 99.7% MnO ≤ 0.001% > ...