100pcs U groove POM Plastic coated bearing 634ZZ 4*25*16.5mm track guide roller bearing wheel nylon wrapped pulley for 10mm rail

100pcs U groove POM Plastic coated bearing 634ZZ 4*25*16.5mm track guide roller bearing wheel nylon wrapped pulley for 10mm rail
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sku: 1005002327383711
$160.00
Shipping from: China
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