可折叠的电动自行车设计

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2017-06-14 Outdoor Sport 2534 3 8

China · Outdoor Sport

2017-06-14 Outdoor Sport 2534 3 8

China · Outdoor Sport

8 6

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手绘和结构很赞！

电池在哪里？

比较轻便的设计。

Samana

China · Outdoor Sport

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