| 摘要 |
It has a body (1) comprising a free end formed by a conical portion (3), and a protective cap (8) fixed removably to the body (1). This body (1) has a circular groove (7) intended to receive the edge (10) of the open end of the cap, and to form with the latter a seal. The other end is connected to a part of an apparatus such as a drip, a washing apparatus, etc. <IMAGE>
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