Various bearings Material: chrome steel (Gcr15=52100=100Cr6 ) ,stainless steel (Aisi440,440c,304) ISO9001,IQNET certificate Deep groove ball bearings: ... , 32200, 32300, 32000x, 313000,33000,33200,333...LM, HM seriesStainless steel bearings:single & double rows ball bearings,taper roller bearings,thrust ...