| 摘要 |
<p>Chassis frame side rail for the body shell of a motor vehicle, made up of a hollow body the outer wall (1) of which is made of steel or of aluminium, characterized in that the outer wall (1) surrounds an inner wall (2) made of steel or of aluminium, this outer wall (1) and this inner wall (2) each having an octagonal cross section and these two walls (1, 2) being connected to one another by several steel or aluminium fins (3).</p> |
