дубящий проявитель 🎓²
дубящий проявитель 🎓²
https://chemistry_ru_de.deacademic.com/8661/%D0%B4%D1%83%D0%B1%D1%8F%D1%89%D0%B8%D0%B9+%D0%BF%D1%80%D0%BE%D1%8F%D0%B2%D0%B8%D1%82%D0%B5%D0%BB%D1%8C
chemistry_ru_de.deacademic.com/8661/дубящий проявитель
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