... &Gas Reservoir Fracturing; 3, L,M,H three series for differ usa; 4, High fl conductivity; 1.Brand Name:DESHI2. ... Henan, China (Mainland)4.Application:Oil & Gas Development, Specifially designed for Oil&Gas Reservoir Fractruing5.Material:Alumina Ceramic6.Density: Light-weight ... .Model Number:20-40, 30-50, 40-70, etcSpecifically designed for Fracturing.Ceramic Proppant. Ceramic Proppant