... ,5-8mm,8-15mmSand:16-30mesh,30-60mesh,60-80mesh,80-120meshPowder: 200mesh,250mesh,325meshPhysical and chemical indicators: Item/GradeYNS45YNS45YNS44YNS44YNS43YNS42YNS40YNS36ABAB AL2O3 ... .01.151.31.52.02.53.03.5Ti02 % (max)0.80.80.90.91.01.11.21.3K2O+Na2O % (max)0.30 ...