| 摘要 |
<p>The method involves transforming an outer pipe (12) in direction of an interior pipe (11) at bending points of a double tube (1) while maintaining the straight adjustment of the double tube. The double tube is bent at the bending points. The outer pipe is formed at the bending points in the direction of the interior pipe. The interior pipe is aligned at a place (S1) of the interior pipe. An independent claim is also included for a double tube for a heat transducer.</p> |
