| 摘要 |
<p>The apparatus is provided with a bottle gripping unit and a heating component surrounding a part of the bottle, and comprises a sealing component supporting the neck of the bottle to be tightened and clamping components which might be fitted to the neck of the bottle to be tightened. The sealing component is supported by a spring and provided with an air outlet opening connected to a vacuum pump. The sealing component and the spring are arranged in a piston provided with air outlet opening and moving in cylinder.</p> |
