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Continue to Chat途上国の子に飲み水を 仙台のベンチャー、インドネシアの学校に浄水器設置 ヤシ殻炭でろ過機開発 | 河北新報オンラインニュース https://blog.40ch.net/2019/02/22/drinking-water-to-children-of-developing-countries-sendai-venture-indonesian-school-installed-water-purifier-filter-machine-with-coconut-shell-charcoal-developed/