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高圧洗浄、ハウスウォッシュ、屋根クリーニング、ソフトウォッシュに漂白剤を混ぜる方法 #pressurewashingtips
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高圧洗浄 漂白剤・薬品の簡単な混ぜ方
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96: "We use a bleach solution for sanitizing." 私たちは漂白剤を衛生のために使います。