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| 配方类型： |
PHOTOGRAPHY |
| 配方说明： |
Toning Photographic Prints Red |
| 配制方法： |
Prints can be toned red by soaking in a strong solution of nickel dimethyl glyoxime in aqueous potassium hydroxide. Wash the print well after fixing and immerse in the solution for 30 to 90 seconds for depth of tone. |
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