Heavy calcium carbonate is made of high quality calcite as the raw material,which is processed white powder by machine, its the main component is CaCO3, be insoluble in water and ethanol, with high whiteness, purity, hue and soft, and chemical stability, etc.It is the industry's largest inorganic fillers, such as artificial floor tile, rubber, plastic, paper-making, coating, paint, printing ink, cable, food, medicine, daily chemical industry, feed, toothpaste,etc. it can increase the volume of products and reduce the production cost.