1)6203-ZZ 2)ISO 9001:2000 3)Bearing steel 4)low vibration, low noise, low friction, high accuracy The products are widely used in transmission devices such as household appliance,mini or micro motor,medical apparatus, telecommunication equipment and sport apparatus. TypeDeep Groove Ball BearingsModel Number6203-ZZCompany management certificationISO 9001;2000Bearing MaterialBearing SteelPrecision ...