100PCS 0.5 Mold 8/9/10/11/12/13/14/15/16/18 Gear Motor Gears Plastic pinion Hole 0.8/1/1.5/2/2.5/3mm

100PCS 0.5 Mold 8/9/10/11/12/13/14/15/16/18 Gear Motor Gears Plastic pinion Hole 0.8/1/1.5/2/2.5/3mm

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