| abstract |
A container is equipped at the bottom thereof with an aluminum layer of considerable thickness, as compared with the thickness of the said bottom, the said layer incorporating a plate of rolled steel, thoroughly anchored in the said layer, in such a way that at least part of the surface thereof projects from the face of the said aluminum layer. To ensure the anchorage of the rolled steel plate, the latter is provided with openings through which the aluminum penetrates and wherein it anchors. |