... .Moisture:<0.3% 3.Whiteness:93%min 4.Material:mineral toothpaste calcium carbonate 1.useage:plastic, rubber,papermaking,paint,rubber,feed ... ,waterproof material 350-400mesh:gusset plate,chemical,pipe 400-600mesh:toothpaste and soap 800mesh:rubber,pvc,plastic,electric cable 1250mesh:pvc ...