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Letoto la Rosin Resin SOR – SOR 422
Rosin resin SOR 422 ke resin ea maleic acid, e tsejoang hape e le resin ea maleic acid e omisitsoeng. Ke granular solid e lokisitsoeng ka karabelo ea rosin le maleic acid e fetotsoeng ka ho eketsa rosin ho maleic acid anhydride le esterification ka glycerol kapa pentaerythritol.
