... Proppant is divided into: low-density, medium density, high-density. Specifications ofCeramic Proppant are: 12-18 mesh, ... mesh, 16-30 mesh, 20-40 mesh between 30-50 mesh, 40-60 mesh, 40-70 mesh and so on. ... enable us to provide customers with the reliable quality products, the most competitive prices and timely service ... benefit, to create a prosperous career together high quality ceramic proppant