... rigorous and demanding procedures for all manufacturing phases, especially for the aspects related with ... to bulk density,Ceramic Proppant is divided into: low-density, medium density, high-density. ... Specifications ofCeramic Proppant are: 12-18 mesh, 12-20 mesh, 16-20 mesh, 16-30 mesh, 20-40 ... to provide customers with the reliable quality products, the most competitive prices and ...