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Rosin Resin SOR Series – SOR 422
Rosin resin SOR 422 yog maleic acid resin, tseem hu ua dehydrated maleic acid resin. Nws yog cov khoom khov uas tau npaj los ntawm kev sib xyaw ntawm rosin thiab maleic acid hloov kho los ntawm kev ntxiv rosin rau maleic acid anhydride thiab esterification nrog glycerol lossis pentaerythritol.
