... strength 2.High back proppant 3.Increase output of 30%-50% 4.High-ending technology 5. ISO9001:2008 ... into the cracked layers to support the facture, it can keep the oil and gas to flow smoothly. Lots ... of practice has proved that, use Ceramic Proppant can improve 30%~50% of Capacity and prolong the life cycle.Ceramic ... -20 mesh ,16-20 mesh ,16-30 mesh, 20-40 mesh between 30-50 mesh, 40-60 mesh, 40-70 ...