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Cov khoom

  • Rosin Resin SOR Series - SOR 424

    Rosin Resin SOR Series - SOR 424

    Rosin resin SOR 424 yog lub teeb xim thiab ruaj khov hloov kho, uas yog raws li rosin thiab unsaturated polyacid ua cov khoom siv raw.Rosin thiab maleic anhydride rau ntxiv cov tshuaj tiv thaiv thiab esterification ntawm pentaerythritol, thiab tsim los ntawm refining, decolorization, hloov kho thiab lwm yam txheej txheem.Cov kua roj vanish ua los ntawm nws muaj qhov zoo ntawm qhov ci ci, siab hardness thiab muaj zog adhesion.