Precision Mini Turbine Worm Gear 0.2M 20/30 Teeth 0.8/1/2/3mm DIY Car Model Deceleration 90-Degree Right Angle Transmission Gea

Precision Mini Turbine Worm Gear 0.2M 20/30 Teeth 0.8/1/2/3mm DIY Car Model Deceleration 90-Degree Right Angle Transmission Gea

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