| 摘要 |
A gasket constituted by a flat body portion of gasket material having at least one eyeletted aperture therein, characterized in that the eyelet is a composite one having an inner and outer portion, said portions being so disposed that on one face of the gasket body material, the inner portion projects beyond the outer portion, and that on the other face of the gasket body material, the outer portion projects beyond the inner portion. |
