1. we are the real manufacturer of zinc oxide 2. free sample 3.content 75-99.7% 1. we are the real manufacturer of zinc oxide2. free sample3.content 75-99.7% Zinc Oxide 90% feed grade ZNO: 80%,90%,95%,98%,99% Zn: 64.2%,72%,75%,78.7%,79.5% Green Seal ClassificatZinc Oxide 90% feed gradeProduct name: ZINC OXIDE 90%Batch no.:20110103Manufacture date:Jan.3,2011Expire date:Jan.3,2012Packing:25KGS/ ...