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JR東海など、環境配慮コンクリ 車両製造時の副産物活用
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https://www.nikkei.com/article/DGXZQOCC236I30T20C25A3000000/
JR東海など、環境配慮コンクリ 車両製造時の副産物活用
You're leaving TrendXday.com. Please be careful when visiting external sites.