| 摘要 |
An alkali cleaner is described, including an alkali component (A), a polyvalent alcohol (B) of 3 to 8 valent containing no nitrogen atom and having a Mn of 92-400, and an alcohol (C). The alcohol (C) includes at least one alcohol selected from the group consisting of a divalent alcohol (C1) containing no nitrogen atom and having a Mn of 62-250 and a monovalent alcohol (C2) containing no nitrogen atom and having a Mn of 32-500.
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