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*masaru sakamura
HiroshimaPrefecturalTechnologyResearchInstitute
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kaoru ohishi
HiroshimaPrefecturalTechnologyResearchInstitute
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yoshihiro takeyasu
HiroshimaPrefecturalTechnologyResearchInstitute
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hidetoshi fujii
Joining and Welding Research Institute Osaka Univesity
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kazuhiro nakata
Joining and Welding Research Institute Osaka Univesity