Forged Chrome Steel Balls High Hardness Grinding Steel Beads HRC60.0-66.0 for Skates 5.556mm 6.350mm 7.937mm Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：0.881g Chrome Steel Ball for Pumps, Castors, Measurement Instruments, Valves 6.0mm 3/32inch Next：2g 3.521g High Quality Chrome Steel Ball for Lamp Pendant Castors, Measurement Instruments, Valves 3/8 Inch 5/16 Inch
