| 摘要 |
<p>The connection has visualization units for visualizing sinking of a tube (4) in a housing having a window (20) arranged in a cap (13). A visualization ring permits change in outer appearance of the connection when the tube is sunk or not sunk in the housing that is arranged between a tubular nozzle and the cap. The ring has a contact portion received between a gripping ring and the nozzle. The portion is designed to cooperate with an end of the tube during sinking of the tube in the housing.</p> |
