If the solar cover is made with a plastic frame which is foamed on or injected on, in the edge area of the cover plate, {HEAD ~ the plastic frame} can have recesses in the area of {TAIL ~ the cover side contacts} which are already attached in the foaming or injection process 
If the solar cover is made with a plastic frame which is foamed on or injected on , in the edge area of the cover plate , { HEAD ~ the plastic frame } can have recesses in the area of { TAIL ~ the cover side contacts } which are already attached in the foaming or injection process
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