Xtol是5L, D76是1加侖，半年內有效，我用1+1的稀釋比例，一般可以在半年內用完。

來源: 雙城故事於 2019-06-08 20:52:35 [舊帖] [給我悄悄話] 本文已被閱讀：次

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