... 4.MOQ:100PCS Precision Zirconia Ceramic Ball Material:zirconia ceramicExcellent features :1.Material:zirconia graulation2.Using many fine ... acid,alkali,steam,non-lubricated environments.5.Preventing material from contamination because of its extreme low ... and dispersed,structural ceramics,electronics,refractory ceramics,magnetic material,metallurgy,medicine,food,cosmetics,textiles,printing and dyeing ...