Metal pipe inner surface polishing wheel and polishing machine
The utility model discloses a metal pipe inner surface polishing wheel and a polisher, the metal pipe inner surface polishing wheel comprises a core rod (3) and a first polishing unit (1) which are sleeved inside and outside, the first polishing unit (1) comprises a first unit first abrasive paper s...
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Format: | Patent |
Sprache: | chi ; eng |
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