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Amazon.com: 8M 32Teeth Timing Belt Drive Pulley 8mm Bore 8mm Pitch For 20mm Width Belt 8M32T Synchronous Wheel without Step Aluminium Alloy (tooth width: 21mm, bore: 8mm) : Industrial & Scientific
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Amazon.com: L-20Teeth Timing Belt Drive Pulley 12mm Bore 3/8" 9.525mm Pitch For 15mm Width Belt L-20T Synchronous Wheel without Step Aluminium Alloy ( tooth width: 16mm, bore: 12mm) : Industrial & Scientific
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