... Powder and lump, additive in the feed Application: 200mesh: as the additive in the feed 250-300mesh: whitewash the wall,plastic,rubber,waterproof material ... electric cable 1250mesh:pvc,PE,coating,papermaking Properties:1.process:selects high purity limestone as raw material, is ... made through process of calcining.chemical reaction,reselection.dehydration,drying and ...