| 摘要 |
<p>The device has an ejector net (1) comprising flat metallic supports (2) that are arched at right angle from top to bottom. The supports are placed in parallel and pierced with 16 holes from top to bottom, where the holes have diameter of 8 mm. The holes are provided with washers and nuts for fixing the ejector net. Handles (3) are fixed on a central axle at lateral sides of the supports. The supports are pierced with 4 holes that are provided with washers and nuts, where the holes have diameter of 10 mm. The handles are traversed by threaded rods.</p> |
