... bag,1 MT bag 2.70#,80#,85#,90#,95#,98#,99#,99.5# 3.Grain size:0-200mesh,0-3mm 4.ISO9001 ... Improve the resistant compression,break resistant, impervious,anticorrosive,impact resistance and wear- resisting property.2.Water retention,prevent segregation reduce pumping ... prolong the service life of concrete.4.lower the cost and improve durability.5.Improve compactness of Pouring type refractory.Application ...