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Amazon.com: L14T L-type Pitch 3/8" Tooth Width 21mm Timing Belt Pulley Synchronous Wheel For 20/25mm Width Belt (L14T, Tooth width:21mm) : Industrial & Scientific
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Amazon.com: ZHaonan-Timing Pulley, 25 Teeth 5M Timing Pulley 25T, 6/6.35/8/10/20/25mm Bore, Aluminium Pulley Wheel, 21mm Width, Motor Belt Pulley for 3D Printer, Accurate Size : Industrial & Scientific
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