3d Printer parts Extruder Parts U-groove idler belt pulley ball Rail bearing U604ZZ u ditch 604UU U groove 4x13x4mm

3d Printer parts Extruder Parts U-groove idler belt pulley ball Rail bearing U604ZZ u ditch 604UU U groove 4x13x4mm
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sku: 1005004296672684
$1.70
Shipping from: China
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