• 1. bicycle chain set: 自行车全链盒 | 脚踏车全链盒
• 2. bicycle e chain set: 自行车全链盒

• 1.The city is to set up a bicycle producing park and develop an industrial chain by introducing bicycle producers.
  株洲正准备引进生产厂家，建立一个自行车生产基地，并由此打造成产业链。
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