Rubber as the filling agent, the additives. Can also be used in rubber products (carbon black rubber chemical), paint coating industry, because the price is high, the dosage of titanium dioxide than less, and also can be used in glass, ceramic industry. In addition to industrial besides, still have pharmaceutical grade, but requires content is high, the price is high. Feed grade, food can also provide. And active zinc oxide, main content is 95%, 99%.