... Powder,building materials Application: 200mesh: as the additive in the feed 250-300mesh: whitewash the wall,plastic,rubber,waterproof material 350-400mesh ... papermaking Properties:1.process:selects high purity limestone as raw material, is made through process of calcining.chemical reaction,reselection.dehydration ... .4400MESH940.3980.30.4325MESH940.4980.30.4 E07109, Limestone Powder, building material