| 摘要 |
<p>An air ventilating tube having a male and female and; the male end having a rib formed around the circumference of the tube, the rib being spaced from the end, and a plurality of eyelets positioned around the rib; the female end comprising a rib formed at the other end of the tube and having a plurality of eyelets positioned in the rib; and a longitudinal rib formed on the tubing and having eyelets mounted along it.</p> |
