| 摘要 |
Foamable material is mounted in a first cavity defining component by providing the foamable material on a foil and by the provision of retaining means in the cavity defining component and matching attachment means in the foil so that the foil/foamable material laminar structure is retained in place and the cavity is formed with a second cavity defining component and the foamable material then foamed to produce a foam filled cavity. |
