Otto - Those are modeling reference points for doing CAD (Computer Aided Design) files to use as the base for machining stamping dies to recreate the stamped panel from sheet stock.
Basically creating a computer file that replicates the original piece dimensions into a 3-D model using the reference target points.
PS - I may have not used the correct terminology for what I described, but I think you get the basics of what it means. Daniel, Kevin or someone else more knowledgeable of the process can clear up anything I didn't get exactly right.
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