| 摘要 |
A working fluid unit, comprising a container having a temperature-sensitive vehicle working fluid contained therein, in particular for exhaust gas after-treatment, a container mantle which is open at least on one side and in which the vehicle working fluid is introduced and the opening of which is closed by a container lid, wherein the container lid is connected to the container mantle by friction stir welding, magnetic pulse welding, or magnetic pulse crimping, wherein the connecting seam is spaced a distance from the vehicle working fluid that is present.
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