... Limestone Powder and lump, additive in the feed Application: 200mesh: as the additive in the feed 250-300mesh: whitewash the wall,plastic,rubber,waterproof material 350-400mesh ... :gusset plate,chemical,pipe 400-600mesh:toothpaste and soap 800mesh:rubber,pvc,plastic,electric ... .30.4 F-0172, Limestone Powder and Lump,additive in the feed