100PCS G10 Grade High Precision Bearing Steel Balls Dia 2.3 2.31 2.32 2.33 2.34mm to 3.15mm GCR15 Slider, Guide Round Ball Beads

100PCS G10 Grade High Precision Bearing Steel Balls Dia 2.3 2.31 2.32 2.33 2.34mm to 3.15mm GCR15 Slider, Guide Round Ball Beads

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