51*40*33mm Bowden Extruder Set BMG Cloned Btech Dual Drive for 3D Printer Replacement Part gearing ratio thumbscrew tensioner

51*40*33mm Bowden Extruder Set BMG Cloned Btech Dual Drive for 3D Printer Replacement Part gearing ratio thumbscrew tensioner
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sku: 4000109368101
$11.79
Shipping from: China
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