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110736.[US]
美国求购墨水(Ink Reactive To Water) |
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Looking for a specialty ink that can be put on white paper by hand that "is not visible" when paper is dry, but when paper is put in water, then the ink shows up clearly. Ink can be of any color. Thanks!
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| 本信息价值 5 点积分,建议回复日期 2007-11-09 之前. |
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