1 Prompt delivery 2 high quality,high precision 3 Professional drawing and design, structure 4.Material: GCr15/ ... ,Germany ,American TIMKEN,Janpan NSK,KOYO,NTN,IKO Product nameCylindrical Roller BearingBrand nameRJD NSK TIMKEN SKF Koyo IKO NTNSeries6000 seriesMaterialBearing steel ...