| 摘要 |
<p>The body has a central module (15), an outer-side closing module (16) and/or an inner-side closing module (18), where the modules are arranged in a cylinder core hole via mutual guides. The modules are firmly connected with one another by an axially arranged fastening bolt. The fastening bolt is axially fastened with a foot portion (2) in one of the closing modules and engaged with a head part (3A) in another closing module in an axial movable manner. The modules are fastened by a radially arranged threaded bolt (4A) that acts against the head part.</p> |
