... . Fully calcined7. Low impurity content.8. Pure white.Specifications:Size of particles: 0-1mm,1-3mm,3-5mm,5-8mm,8 ... ,16-30,30-60,30-80,60-80,80-120 (mesh)Size of powder: -200mesh,-270mesh,-325meshPhysical and chemical index: Item/GradeYNS45YNS45YNS44YNS44YNS43YNS42YNS40YNS36ABAB ...