| 摘要 |
The invention concerns a motor vehicle air duct also serving as crosspiece forming part of the structure of the vehicle. The invention is characterised in that the duct comprises two half-shells (2, 12) including each a tubular portion (6, 16) and two lateral flanks (4a, 4b; 14a, 14b); it further comprises: two stop elements (22a, 22b) defining each a rib projecting relative to one of the contact surfaces of one of the half-shells and having a stop surface arranged immediately proximate to an abutting surface (40a, 40b) provided on the other half-shell (12), a continuous weld bead (13a, 13b) extending between the contact surfaces of the half-shells which are in contact with each other.
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