| 摘要 |
<p>The gasket comprises a first metal plate (A10), and a second metal plate (A11) situated under the first metal plate (A10). The first plate (A10) includes a sealing device (A10c, A10e) around a first hole to be sealed, and a wide bead (A10b) situated between the sealing device (A10c, A10e) and a base portion (A10a) of the first plate. The second plate (A11) has a second hole larger than the sealing device (A10c, A10e), and a support bead (A11a) around the second hole. When the first and second plates (A10, A11) are assembled, the second plate (A11) does not pile the sealing device (A10c, A11e), while the support bead (A11a) is located under the wide bead (A10b). When the gasket is tightened, the sealing device (A10c, A10e) seals around the hole, and also, the support bead (A11a) supports the wide bead (A10b) to widely seal around the hole. <IMAGE></p> |
