... 40/70 Mesh 2.High Fracture Conductivity 3.Oil,Gas 20/40 Mesh Fracturing Proppant (Low,Middle,High Density) ... 0.3-0.6 mm etc. 3.Specification (Size) : 20/40 mesh ; 30/50 mesh ; 40/70 meshOther special ... Such as 6/12 mesh,8/16 mesh,12/18 mesh,12/20 mesh,16/20 mesh,16/30 mesh,30/60 mesh,40 ... weight 1500 kg jumbo bag or negotiation,21 mt / 20 FCL 20/40 Mesh Fracturing Proppant (Low,Middle,High Density)