... ) % ≤0.0100.010Sieve Residue(45um)4-2015 Direct Zinc Oxide 99.5% ~90%, etc. - Indirect ZnO: 99.9 ... Zinc Oxide Grades : Indirect process Zinc Oxide, Direct Process Zinc Oxide, Calcined Zinc Oxide, Feed Grade Zinc Oxide, Pharmaceutic Zinc Oxide, nanometer Zinc Oxide, etc ... .Usage: Used in rubber, dope cable, porcelain enamel, oil, pottery and porcelain, glass and other chemical industry.Packing: In ...