... 3.BV,SGS,CIQ,ISO,COA,MSDS 4.Free sample manufacture of carbon black N330 for tyre industry1.black powder or granular 2 ... and excellent service . We are a professional and largest supplier of carbon black Technical Date ItemsN220N330N550N660Iodine Absorption Number g/kg121 +/-582 +/- ... road tires compound, can improve the tyres collapse, flowers, split. manufacture of carbon black N330 for tyre industry