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Answer: The threaded hole here can be used to connect the negative wire of the spark head
★With metal gearbox - Li-ion battery and new remote control
Its length is 77MM
Engine parameters
There is an M5*0
Wedge-shaped Vertical Solar Magnetic Levitation Motor Model Type_ENJOMOR® Brand Answer: The threaded hole hereWedge shaped Vertical Solar Magnetic Levitation Motor Model Features:. Simple Operation: Place the rotor on a flat table and gently push the rotor under the illumination of the light source, it will run smoothly. The principle is interesting and educational. The appearance of motor is novel and high quality.. Science, Education and Entertainment: The motor rotor can rotate for a short time under weak light source. If the light is stronger, the rotor
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