Workers are busy with producing bicycle hubs for shared-bikes at a plant in Jinhua city, East China’s Zhejiang province, Jan 14, 2018. [Photo/Xinhua]

Workers are busy with producing bicycle hubs for shared-bikes at a plant in Jinhua city, East China’s Zhejiang province, Jan 14, 2018. [Photo/Xinhua]

A worker is busy with producing bicycle hubs for shared-bikes at a plant in Jinhua city, East China’s Zhejiang province, Jan 14, 2018. [Photo/Xinhua]