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1mm Steel Ball Miniature Precision Copper, Ball Sleeve, Steel Ball cage, Bushing Guide pin Guide Bushing Miniature cage, 2 Packs-Inner Diameter 8 Outer Diameter 10 Length 25: Amazon.com: Industrial & Scientific
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1pcs Mold accessories Steel ball cage Plastic sleeve Balls holder Guide post guide cover inside diameter 16mm 30mm-60mm Length - AliExpress
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