Gasket comprises central metal sheet between two outer sheets, one of which is bent back over edge of t central sheet while edge of other fits inside bent section
摘要
<p>The gasket comprises a central metal sheet (22) between two outer sheets. One outer sheet (20) has a section (14) which is bent back through 180[deg] over the edge of the central sheet while the edge of the other (18) fits inside the bent section.</p>
