we can supply carbon black,the kinds is n220,330,550,660,if you need,please contact me not hesitate, CARBON BLACKCAS.NO. 1333-86-4 Molecular Formula:CMolecular weight:12.01Appearance Black power or granularSpecification Name ,ParameterCarbon black N220Carbon black N330Carbon black N550Carbon black N660Loding Absorption Number(g/Kg)114-12877-8739-4732-40Absorption Value of DBP (10-5m3/Kg)109-11997 ...