This report studies zirconia ceramic ball mainly used for ceramic bearings and valves. The specifications demand of this kind of ball is much higher, as well as the price. In the market, there is another zirconia ceramic ball, which is commonly called zirconia beads, which is mainly used for grinding or milling; this kind of ball or bead is low cost with lower quantity demand, in this report this kind of ball is not counted. 更多
