1.CaCO3 contents: 98%min 2.Size(mesh): 325 1250 etc 3.whiteness:93min 4. ... 1250mesh:pvc,PE,coating,papermaking Properties:1.process:selects high purity limestone as raw material, is made through process of calcining ... and secondary depolymerization.2.feature:poison free,odour free,high purity,high heat stability,low oil absoption,good dispersibilityTypical Physical Properties ...