Polyoxymethylene Solid POM Plastic Ball Precision Bearings Rolling Bead 2/2.38/2.5/2.778/3/3.175/3.5/4/4.5/4.763/5/5.5/5.95~50mm

Polyoxymethylene Solid POM Plastic Ball Precision Bearings Rolling Bead 2/2.38/2.5/2.778/3/3.175/3.5/4/4.5/4.763/5/5.5/5.95~50mm

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