... with competitive price StandardAISI, GB, JISGrade304,316,316L,420,440.,440C..Diameter1.0-50.8mmApplicationwidely applies in the ramming bearing,the ... Number440Cgrade16-1000440C and General stainless steel widely applies in the ramming bearing,the valve,the seal,bicycle ,motorcycle,AISI 440CSize :1.0-50 ... ≤0.03016.0-18.0≤0.75≤0.60 304 Stainless steel ball