| 摘要 |
<p>The element (1) has a unilateral or bilateral sealing compound (3) between cable protective tubes and a surface of the tubes and/or inner casing tubes. The compound is applied on a sleeve, and a layer-like structure of a thick active material is provided in the sleeve. The compound is provided on inner and outer surfaces of a supporting or pressure sleeve, and a perforated contact layer (4) is provided opposite to the surfaces. A small part of the compound is pressed by a perforation (4a) of the layer, and takes the sealing. The layer has a plastic film, and the compound has spirit gum.</p> |
