... SGS,CIQ,COA,MSDS,ISO 2012 market price for carbon black N220, black carbon for sale with competitive price 1.Powder,granular 2 ... tire,bias tire and high wear-resisting. Carbon black We mainly manufacture and export carbon black N220,N330,N550,N660,N326,N774 ect ... differed greatly in their chemical composition from current carbon blacks. Since the mid-1970s, most carbon black has been produced by the oil ...