... supporting materials to improve the capacity.Comparing to traditional low strength supporting agent, such as quartz sand, ... (174KN) three series, according to bulk density are divided into: low-density, medium density, high-density. Product specifications are :12-18 mesh , ... 60 mesh, 40-70 meshTechnical Parameters:SpecificationBulk Density(g/cm3)Apparent Density(g/cm3)Close Pressure(Mpa)PERCENTAGE OF ...