| 摘要 |
PROBLEM TO BE SOLVED: To improve reliability of a sealing device. SOLUTION: This sealing device is constituted of two overlapped rings 1. A projection 3 exists on a surface opposed to a sealing surface 2 of the one ring 1 having the sealing surface 2 and the projection 3 is deformed so as to be held by an abutment 4 of the other ring 1. The projection 3 becomes resistant to impact and heat by being integrated into the ring 1 having the projection 3 to improve reliability.
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