Two -sided polisher of silence dust removal
The utility model relates to a two -sided polisher of silence dust removal. The big problem of polisher dust has mainly been solved. Grind saying that the upside is equipped with and brushing the rod, the downside is equipped with down brushes the rod, and brush the rod on, and the periphery interva...
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Format: | Patent |
Sprache: | chi ; eng |
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