Aluminum alloy frame treated by powder coated finishing,enables the change of colors.Two sets of sealed ball bearings-are used.chloroprene rubber,and two sets of sealed ball bearings are used.

 
  • 铝合金的支架,表面采用喷塑处理,可以改变颜色.;轮圈采用人造橡胶材料,采用两套密封滚珠轴承
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