1.Hardened steel guide bushing 2.Oil groove ejector guide bushing 3.Custom made guide bushings 4.Fast delivery 5.OEM Item No.: GSGBBWItem Name: Strong Type Straight Oil Groove Guide BushingMaterial: SteelType: Straight Strong TypePattern: Oil GrooveColor: OriginalSize: Custom MadeHeat Treatment: CarburizingHardness: 58HRC~Tolerance: Within 0.002mm or as clients' requestsConcentricity: 0. ...