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Design description:internal part of the hub contains magnet, the internal "rotor" can make "rotor" on "positive" and "negative" levels of generate electricity through the cutting magnetic induction line.When you are riding a bicycle, through the rotation of the wheels, current are produced, which is usable for the bicycle. Accord with energy conservation and environmental protection concept.
Power/King Yuan/Qiu Caixia/Ji Chen/Zeng