civil engineer in Ōizumi Machi, Gunma Ken

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（有）長谷川工業

７７２−５２, 372-0024 Isesaki-shi, Japan

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（有）野澤建設

Fukaya-shi, 366-0812 Fukaya-shi, Japan

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Nikken

Kōnosu-shi, 365-0005 Kōnosu-shi, Japan