... /Parameter StandardZinc Oxide (in accordance with dry materials) % ≥ZnO 99.5%ZnO 99%ZnO 98%ZnO 95%ZnO 90%Lead oxide (PbO ... .40.50.50.5Specifications- Direct Zinc Oxide 95% , 90%~99.5% - Indirect ZnO 99.9%~99.7%, etc. - Feed Grade ZnO 75%~65%, etc ... . - Calcined ZnO 99.5%, etpacking:Plastic woven bag, inner lining plastic ...