Air door of making an uproar falls in unsmooth grain shape in surface
The utility model provides a shape is irregular and appears that air door of making an uproar falls in unsmooth grain shape in surface has unsmooth granule at the surface distribution of air door, unsmooth granule. The utility model discloses an at the surface machining of air door some rule or anom...
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Format: | Patent |
Sprache: | chi ; eng |
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