Ultrafine barium sulfate products are produced by using high-grade barium sulfate ores through the world s leading technology. The product is compact particle with narrow particle size distribution and high chemical stability. The content of barium sulfate is over 98%. It has high whiteness, no black spots, no impurities, good dispersibility, good wettability, excellent acid resistance, high temperature resistance and corrosion resistance. It can significantly improve the hardness and wear resistance of products.