bicycle steel ring ; bike steel ring ; bicycle steel rim ; bike steel rim
自行车钢圈 bicycle rim
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本文为提高自行车钢圈用带钠的尺寸精度和各项性能进行了轧制和热处理工艺试验，得出了好的工艺制度。
In order to increase the dimensional accuracy and other properties of strip steel used for the tyre rim of bicycle, the experiments on rolling process and heat treatment are made.
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