... low heavy metals. Zinc oxide indirect method ,zinc oxide direct methody ,zinc oxide france process,zinc oxide america process ,zinc oxide powder .The name of ... alkali and ammonium chloride solution. indirect zinc oxide: zn,pb,mn,cuO, direct zinc oxide: pb,cdO,cuO,mn,zn. uses: Accelerator activator,pigment ... : woven bags lined with plastic bag.25kg net each. zinc oxide indirect and direct