| 摘要 |
A gasket made of nickel, nickel alloy or stainless steel has a sealing face to be engaged by a knife-edge of a joint part. The gasket is cut to form a concave groove, a stepwise reduction in thickness or a sloping cut-out at the sealing face. The sealing face is protected from contact by an adjacent higher land portion. During processing, the gaskets can be stacked or carried on a rest. Any contact occurs at the land portion rather than at the sealing faces, which are protected by the land portions from contact. Dents or scratches in the sealing faces are prevented.
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