1.ceramic bearing ball 2.ISO9001;2000 3.various types,quick delivery 4.low price,high precision 5.good quality Bearing Ball,High Precision Ceramic Bearing Ball:1. Styles: balls, rollers, needles, ring, cage, seals, shields, adaper sleeves, locknut2. Material: Chrome Steel, Stainless Steel, Carbon Steel, Ceramic, Brass, Bronze3. ISO 9001-2000 certificate, high quality4. OEM Service5. We can supply ...