... black meeting with sulfureted hydrogen.Uses: Zinc oxide used as white dyestuff and used in printing ... import hot air for oxidization to produce zinc oxide; after cooling, by cyclone separation to collect ... into bag, and thereby finished product of zinc oxide is obtained.Target: GB/T3185-92 ItemIndexZnO %≥99 ... S Code: 2817001000Monthly Production: 650T Zinc oxide, Zinc white, food, phama, industry grade