... ,it can be used for the system ointment, zinc paste, plaster, etc ApplicationZinc oxide is used in rubber and tire industry are essential ... outer polypropylene woven bag, 25kg, 50kg, big sack bag 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.