low broken rate ceramic proppants 1,high quality and competitive price 2,low rate of rupture 3,high intensity Ceramic Proppants1,Ceramic proppants can be classified according to its fracture resistance capability: 7500psi (69Mpa), 10000psi (69Mpa), 12500psi(86 Mpa). 2,According to the bulk density, ceramic proppants also can be classified into the low, medium and high bulk density ceramic ...