| 摘要 |
<p num="1"><br/><br/><br/>An apparatus for creating a firestopping barrier in a through-penetration <br/>includes a support mechanism arranged within the through-penetration, firestop <br/>material movably connected with the support mechanism, and firestop material <br/>arranged between the firestop material movably connected with the support <br/>mechanism and the inner surface of the through penetration.<br/>
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