| 摘要 |
A frame protector may include a first protective sidewall and a second protective sidewall, with at least one of these protective sidewalls sized so as to extend essentially from proximate the first end to proximate the second end of an underlying frame sidewall, as well as downward to a point proximate the lower edge of an underlying frame sidewall. The frame-protector sidewalls may be connected together via a frame-protector bottom wall. And if desired, the sidewalls and bottom wall may be formed so as to include a downwardly-facing arcuate surface.
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