20/40,30/50,40/70 Mesh Oil Fracturing Proppant (Middle Density) 1.High Crush Resistance 2.Prompt ... : Fracturing ProppantSynonym : Oil fracturing proppant ,ceramic sand,ceramic proppant,frac sandH.S.Code : 6914900000 Fracturing Proppant is a kind of ceramic particle ... sintering and into, is a natural quartz sand, glass ball, metal ball pushbottons strength to support the agent substitute, to increase ...