... CertificateOur Zinc Oxide Grades: Indirect process Zinc Oxide, Direct Process Zinc Oxide,Calcined Zinc Oxide, Zinc Oxide, Pharmaceutic Zinc Oxide, nanometerZinc Oxide, etc. ... , oil, pottery and porcelain, glass and other chemical industry.Packing: In polyethylene film bag with outer polypropylene ... or as required by the customerDirect process zinc oxide quality meet standard of GB/T3494-1996 Item ...