Various bearings Material: chrome steel (Gcr15=52100=100Cr6 ) ,stainless steel (Aisi440,440c,304) ISO9001,IQNET certificate Deep groove ball bearings:604 ...series 604ZZ...series 604 ... ,33200,333...LM, HM seriesStainless steel bearings:single & double rows ball bearings,taper roller bearings,thrust ball bearing ,rod end bearings ,needle roller bearingsThrust ball ...