... H three series for differ usa; 4, High fl conductivity; 1.Brand Name:DESHI2.Type:Fracturing Ceramic Proppant3.Place of Origin: Guizhou, ... designed for Oil&Gas Reservoir Fractruing5.Material:Alumina Ceramic6.Density: Light-weight, Medium Density, High Density7.Standards: SY/T5108-2006, SY/T6302-1997, ... :20-40, 30-50, 40-70, etcSpecifically designed for Fracturing.Ceramic Proppant. Ceramic Proppant