English to Hungarian Tech/Engineering Materials (Plastics, Ceramics, etc.) több rétegből álló tömítés műanyag edényekhez

Seals in which a tab is provided lying wholly within the circumference of the seal... The may be formed by preventing lamination in a segment shaped portion of the seal, for instance by interleaving a tabstock material between a plastics layer and the underlying layer.
Szabadalom.
Fül (tépőfül) nyersanyaga? Félkész fül?