... 1:precision --ABEC-3,ABEC-5 ,ABEC-7 2:full ceramic bearing or ceramic hybrid bearing 3:special requirements available The strong ability ... of manufactring the high quality ceramic bearings in China . We had the top bearings R& ... of them at least ABEC-5 precision .2:Our ceramic hybrid bearing ,full ceramic bearings had exported to Germany ,USA ,Russia ,Australia ...