... , porcelain enamel, oil, pottery and porcelain Specifications- 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 ... ZnO 95%ZnO 90%Lead oxide (PbO)% ≤0.120.21.03.04.0Cadmium oxide (CdO) % ≤0.020.05------Cupric oxide (CuO) % ≤0 ...