... Our oil Proppant are divided according to the anti-crushing strength into 52Mpa (105KN), 69Mpa (140KN), and 86Mpa, ... density are divided into: low-density, medium density, high-density. Product specifications are :12-18 mesh ,12 ... -60 mesh, 40-70 mesh and so on.High strength oil fracture proppant physical and chemical properties sheet ( ... .33520.14 0.9690.53861.49 High strength oil fracture proppant