0.5M Modulus Toy Car Motor Transmission Gear 7T 8T 9T 10T 11T 12T 13T 16T Teeth Metal Copper Gear Fit 1mm 1.5mm 2mm 2.3mm Shaft

0.5M Modulus Toy Car Motor Transmission Gear 7T 8T 9T 10T 11T 12T 13T 16T Teeth Metal Copper Gear Fit 1mm 1.5mm 2mm 2.3mm Shaft

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