... Q1 certificate Description of HD Ceramic Proppant for Oil and Gas WellsHD Ceramic Proppant for Oil and Gas Wells adopts the high quality and unique bauxite ... position of this industry.HD Ceramic Proppant for Oil and Gas Wells can be classified as follows:By compression strength: 52MPa (7500psi), 69MPa ( ... 12-20 mesh, 16-20 mesh, 16-30 mesh, 20-40 mesh, 30-50 mesh, 30-60 mesh, 40-60 mesh, 40-70 mesh ...