1.zinc oxide 99% 2.glass grade 3.high purity 4.quality pass ISO and SGS inspection 5.facotry service American Process Zinc Oxide 99% Min for Car Tyre Jiuxiang Brandfrom Shijiazhuang Sunpower Technology Co., LtdPerformance: The product is white powder, tasteless, non-toxic, fine, 5.0606 at relative density, 2.008-2.009 at refractive index, soluble in acid, sodium hydroxide and ammonium chloride, ...