Round louvered cover piece. Might be useful for covering a vent or a speaker.

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Added two new variants with six surrounding mounting ears. Difference between A & B is offset angle, so keep that in mind. (A has mounts top-bottom, B on left-right.) File size is smaller on these because it's at a lower subdiv before exporting.

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Added some more variants. Two that have 8 mounting ears at different offsets, and another that's flanged with no holes on the flange.