... Powder & Granules 2) Purity:99.7% & 99.5% 3) Use: Industry, Chemicals, Food 4) Export experience more 5) ISO ISO9001-2008Zinc ... , batteries, flame retardants and other relevant fields. Zinc oxide has large bandgap and exciton binding energy, high transparency and excellent performance ... /tyre, pharmacy, Glass, cement, Food, electronic, Zinc oxide petroleum chemical industry grade