| 摘要 |
<p>The body (10) has sockets (14) arranged in a circumferential direction in preset angular intervals with respect to a center axis (M) of the body. The adjacent sockets are entangled by loop bundles (18, 20, 22). The sockets and loop bundles are arranged in such a manner that a central aperture (28) is formed in the body, where the aperture extends towards the center axis through the body. A sprue bar (24) is formed at circumferential surfaces (26, 30) extending in an axial direction, and the sockets and loop bundles are partially covered by a rubbery-elastic casing (12) based on the sprue bar.</p> |
