20pcs/100pcs 5*21*12.5 mm Nylon coated plastic H type groove pulley POM roller wheel 3d printer CNC engraving machine 625ZZ

20pcs/100pcs 5*21*12.5 mm Nylon coated plastic H type groove pulley POM roller wheel 3d printer CNC engraving machine 625ZZ
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sku: 1005002552422698
$29.60
Shipping from: China
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