| 摘要 |
<p>The apparatus (10) comprises a punch tool (11) for attachment of peripheral impressions (12) at one end (13) of a tube (14). A template (19) has an insertable tubular sleeve (15) with one contact region (16) for limiting the insertion depth of the pipe sleeve by the positive engagement between the contact region and the portion of the contact region facing tube end (17) of the pipe end portion. A stamping tool counter-surface (20) is provided for positioning the punch tool in a working position on the pipe end portion.</p> |
