| 摘要 |
<p>The invention relates to an absorber tube (1) having a metal tube (10) and a sleeve tube (20) which is made of glass and encloses the metal tube (10) wherein an annular space (5) is formed between the metal tube (10) and the sleeve tube (20) said annular space being evacuated and comprising at least one container filled with protective gas. Said container is a solder free pressure container (30).</p> |
