| 摘要 |
PROBLEM TO BE SOLVED: To provide a gasket having stable sealing performance even in the case of a member to be sealed has lower rigidity. SOLUTION: A pair of first and second protrusions 12, 13 have close contact with a groove bottom surface 21a of a mounting groove 21 provided in a first housing 20 in the mounted condition to form a sealing surface. On the other hand, a third protrusion 11 forms a sealing surface on a surface 31 of a second housing 30 in the mounted condition.
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