20/40,30/50,40/70 Mesh Oil Fracturing Proppant (Middle Density) 1.High Crush Resistance 2.Prompt Shipment 3.8 Years Exporter 20/40,30/50,40/70 Mesh Oil Fracturing Proppant (Middle Density) Product Name : Fracturing ProppantSynonym : Oil fracturing proppant ,ceramic sand,ceramic proppant,frac sandH.S.Code : 6914900000 Fracturing Proppant is a kind of ceramic particle product, has the very high ...