Universal wheel
The utility model provides a universal wheel which comprises a rolling wheel, a driving device and a driving device. The bracket wraps a part of the roller; the wheel shaft penetrates through the roller, and the two ends of the wheel shaft are arranged on the support, so that the roller is allowed t...
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Format: | Patent |
Sprache: | chi ; eng |
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Online-Zugang: | Volltext bestellen |
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