Chinese proppant 20/40 1.Passed ISO & API 2.Tested by ... manufacturer.Our products have the following advantages:1.High conductivity2.High crush rate3.low costOur products can be ... By bulk density: Light density, medium density and high density.2.By compression strength:52MPa(7500psi), 69MPa( ... 16-30 mesh, 20-40 mesh, 30-50 mesh, 30-60 mesh, 40-60 mesh, 40-70 mesh, 70-140 ... com NO.4 Chinese proppant 20/40