Our products ceramic proppant can be divided into: A. By compressive strength: 52MPa (7500psi), 69MPa (10000psi), 86MPa (12500psi), 103MPa (15000psi); B. By bulk density: low density, medium density, high density; C. By specifications :16-20 mesh ,16-30 mesh ,20-40 mesh ,30-50 mesh ,30-60 mesh ,40-60 mesh ,40-70 mesh ,70-140 mesh, etc. We can also develop and produce different proppant according to your requirements. 1.Low acid solubility 2.High permeability 3.Superior quality and competitive price 4.High crushing strength 5.Superior thermal stability 6.High conductivity 7.Passed authentications of ISO9001:2008 ; API RP56. Plastic bag for inner packaging, woven bag for external packaging.