| 摘要 |
<p>The gasket comprises a sheath (10) made of elastomeric material which includes a metallic annular insert (11) which is suitable to absorb the mechanical stresses that tend to make the gasket assume a conical shape. The annular insert (11) is included in the elastomeric sheath (10) preferably by molding in place, and the sheath has annular portions (10a-10b) which are arranged on either sides of the annular insert (11) and have substantially identical outside diameters and different inside diameters, or vice versa. <IMAGE></p> |
