Precision Chrome Steel Ball for Pinball Machine AISI52100 Harden Bearing Steel Balls Ball Bearings 3.175mm 3.9688mm 4.762mm 5.556mm Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：2g 2.717g 11.235g General Application and Chrome Steel Material Chrome Steel Ball 7.937mm 8.731mm 14.0mm Next：28.0mm 1.12inch Chrome Steel Material Ball and Machine Applicable Industries Bearings
