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Akira NISHIMURA
Civil Engineering, Kobe University
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Masao FUJISAWA
Public Works Bureau of Osaka Municipal Office
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Shigeyuki YAMANO
Dept., Harumoto Iron Works Co., Ltd.
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Naruo ISHIZAWA
Dept., Miyaji Iron Works Co., Ltd.
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Seiichi ONO
Dept., Japan Bridge Co., Ltd.