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Rosin retin sor mndandanda - SOR 422
Rosin Resin SOR 422 ndi utali wa acid acin, amadziwikanso kuti amasungunuka acine acin. Ndi granlaula yolimba yokonzedwa ndi rosin ndi ma ulsic ad yosinthidwa powonjezera rosin acid acid acid a alhydride ndi enterulriteritol.
