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*Hisaya Komen
Joining and Welding Research Institute Osaka University
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Keigo Tanaka
Kagawa National College of Technology Faculty of Advanced Engineering
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Shinichiro Shobako
Kagawa National College of Technology
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Yoshikazu Suita
Kagawa National College of Technology
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Noboru Terajina
Kagawa National College of Technology
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Manabu Tanaka
Joining and Welding Research Institute Osaka University