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Talk:RA-4 process

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Hey Ron... Give me a hand here! Discpad 21:41, 22 February 2007 (UTC) Dan[reply]

CD?

[edit]

Which color developing agent does RA-4 use? I presume either CD-3 or CD-4. I would like to link to the appropriate article. Gah4 (talk) 05:40, 10 January 2020 (UTC)[reply]