... %ZnO 95%ZnO 90%Lead oxide (PbO)% ≤0.120.21.03.04.0Cadmium oxide (CdO) % ≤0.020.05------Cupric oxide (CuO) % ≤0.006-------- ... enamel,pharmacy, printing ink, paper making,cables, electronics, coinage, match, chemical engineering, cosmetics, catalysts, phosphorization liquid, electronics laser material, phosphor, manufacture ... and cooperation.3.Packing: 25Kg Plastic Bag Hot sell! Zinc oxide at $1440/Mt