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Nema 17 Stepper Motor Planetary Gearbox Ratio 5:1/10:1/50:1/100:1 Nema17 Geared Motor Φ8mm Output Shaft for 3D Printer

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1package include 5pcs J224 0.4 Module Multi Kinds of Gears DIY Gear Package Science and Technology Making Free Shipping Russia

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21 Kinds Plastic Shaft Gears Group 1 Motor Teeth Axis Gears Sets 1mm 2mm Hole Diameter DIY Helicopter Robot Toys Dropshipping