| 摘要 |
A silencer is disclosed comprising an external case (1) formed by assembling together a first case element (14) and a second case element (15) each formed of a continuous wall comprising a tubular axial portion and an end radial portion (3, 4). The elements (14, 15) are obtained by deep drawing. They are assembled axially together by peripheral welding on the intermediate peripheral connecting zone (30) formed by their two edges (17, 32) applied against each other and bearing on an inner support piece (13).
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