... Heavy& Ground CaCo3 1.Product Introduction:Natural heavy calcium carbonate selects natural,snow-white calcite as raw ... dispersion.2.Technical Parameter:Name & Parameter Model SpecificationItemNatural Heavy Calcium CarbonateSN-1063CaCO3 content (Dry basis), % ≥94PH(10% ... widely used in paper-making,plastic,rubber,paint,building material,etc. Mesh 600 Natural Heavy Calcium Carbonate in rubber industry ...