... whiteness:93min 4.Used for plastic,rubber,chemical,papermaking etc. Limestone Powder and lump for PVC Application: 200mesh: ... -600mesh:toothpaste and soap 800mesh:rubber,pvc,plastic,electric cable 1250mesh:pvc,PE,coating,papermaking Properties: ... of calcining.chemical reaction,reselection.dehydration,drying and depolymerization.It is adopted the technics of ... .4 E07132, Limestone Powder and Lump for PVC