| 摘要 |
The assembly consists of two ducts (1, 2), either rigid or flexible, connected by a coupling (3) with first (11) and second cylindrical sections linked by an intermediate section (13). The first section is designed to receive one of the ducts and has an annular collar (15) filled with a sealing material e.g. injected through a hole (17), while the second section fits inside the other duct. |
