Magnets, Magnetic Assemblies, Bearings manufacturer / supplier in China, offering 683 693 603 623 633 684 694 604 624 634 Hybrid Ceramic Ball Bearing, 7916 7016 7216 7017 7217 7918 7018 Zro2 Si3n4 Full All Ceramic Angular Contact Ball Bearing, 7912 7012 7212 7312 7913 7013 7213 7313 Zro2 Si3n4 Full All Ceramic Angular Contact Ball Bearing and so on.