| 摘要 |
A joint for panels in a kitchen range hood. One panel edge is folded under itself to provide an intermediate flange that is flush with the underside of the first panel edge. The edge of another panel formed as a step including an extension that underlies the intermediate piece. The flange and the extension are secured together, preferably by welding, using a broad flat electrode on the first panel and a point electrode on the extension. The weld is thereby preferentially forme d between the flange and the extension so as to avoid visible weld marks on th e top of the first panel.
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