GT2 Timing Pulley Kit 40 Teeth 20 Teeth 1:2 Reduction Ratio Width 6mm Tensioning Wheel Synchronous 3D Printer 2GT 40T 20T

GT2 Timing Pulley Kit 40 Teeth 20 Teeth 1:2 Reduction Ratio Width 6mm Tensioning Wheel Synchronous 3D Printer 2GT 40T 20T

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