| 摘要 |
PROBLEM TO BE SOLVED: To prevent damage to an exposed part of an insertion metal fitting when a solidification member solidifies, and to certainly cover with high working efficiency. SOLUTION: When an insertion metal fitting 12 is implanted in a ceramic member molding plasticized material containing a ceramic material, a covering bolt, i.e., a metal fitting cover material, prevents adhesion of the plasticized material to a portion of the insertion metal fitting 12 to be exposed. The covering bolt which is a molded product made of a thermoplastic resin is installed to the insertion metal fitting 12 such that the covering bolt covers at least a part of the portion of the insertion metal fitting 12 to be exposed.
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