| 摘要 |
<p>The invention concerns a two-way scraping device (1; 25) for a fluid transporting conduit. The device comprises a thin disc (6) made of polymer rigidified with reinforcing means (8) integral with the disc. The disc, including its reinforcement, is cut out into petals by at least two radial slots (11) shorter in length than the disc radius, the disc radius being substantially greater than said conduit internal diameter.</p> |
