... supporting materials to improve the capacity.Comparing to traditional low strength supporting agent, such as quartz sand, glass balls and ... metal ball, Ceramic Proppant has much higher fracture strength and more environmental, it is manufactured by Bauxite and ... cycle.Ceramic Proppant are divided according to the anti-crushing strength into 52Mpa (105KN), 69Mpa (140KN), and 86Mpa, (174KN) three ...