| 摘要 |
<p>Turnkey consisting of two parts (5, 6) presenting each one ring (1, 2) open in (3), respectively (4). The keys are introduced through one of the openings (3 or 4), and moved towards the other opening. Both parts are then pressed one against the other and held by notch engagement of a protrusion (10) into a small hole (9).</p> |
