| 摘要 |
<p>The invention concerns a catalyst for filtering exhaust gases, comprising at least a filtering element (2, 2A) enclosed in a tubular metal casing (3) shrunk or expanded around said filtering element (2, 2A). Said catalyst is characterized in that said tubular metal casing (3) comprises, over its length (6), at least an intermediate zone (7), respectively non-shrunk or non-expanded. The invention also concerns a method for making such a catalyst.</p> |
