-
Rosin Resin SOR Series - SOR 422
Rosin resin SOR 422 yog cov txiv neej acid resin, tseem hu ua dehydrated maleic acid resin.Nws yog granular khoom npaj los ntawm cov tshuaj tiv thaiv ntawm rosin thiab maleic acid hloov los ntawm kev ntxiv rosin rau maleic acid anhydride thiab esterification nrog glycerol los yog pentaerythritol.
