2pcs SBR20 linear rail guide 20mm linear rails + 4pcs SBR20UU ball bearing block cnc router

2pcs SBR20 linear rail guide 20mm linear rails + 4pcs SBR20UU ball bearing block cnc router
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sku: 10000166451509
$67.00-42%
$39.00
Shipping from: China
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