用稀鹽酸。 homedepot之類的店有賣，商品名Muriatic Acid ，不要用化學名hydrochloric acid

來源: woodsensor 於 2019-08-25 20:00:59 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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