0.5 Modulus 8T 9T 10T 12T 14T Metal Copper Brass Gear Pinion Transmission Gear Fit Motor 2mm 2.3mm 3.17mm Shaft DIY RC Toy Car

0.5 Modulus 8T 9T 10T 12T 14T Metal Copper Brass Gear Pinion Transmission Gear Fit Motor 2mm 2.3mm 3.17mm Shaft DIY RC Toy Car

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