| 摘要 |
<p>The capsule has a hollow frustoconical body (1) including an open end with a rim (2) directed toward outside. A disk-shaped cover (3) is fixed to the rim by setting, clamping and/or gluing. Two axially opposed annular bearing surfaces are adapted to be sandwiched by lower and upper axial pressurizing devices. A gripping tab (4) is attached to the cover and extended to match the body or the cover. The tab is integrally formed with the cover, where the tab has a surface area of 50 square millimeter. The cover is removable by traction exerted on the tab.</p> |
