Fracturing Proppant(Ceramic Sand,Low,Middle,High Density) 1.Size:20/40,30/50,40/70Mesh 2.High Fracture Conductivity 3.Oil Gas Fracturing Proppant (Ceramic Sand,Low,Middle,High Density) Product ... -0.6 mm etc. 3.Specification (Size) : 20/40 mesh ; 30/50 mesh ; 40/70 meshOther special meshes can be made as per ...