... .N330.N550,N660 3.Plastic,rubber industry 4.Hight quality and .Good price Carbon black N220.330.550.660 carbon black ... -wear resistance(N200),resistance(N300),quick-press(N500),and common(N600) of dry process and wet process maily applied to various rubber ... for black dye,Used in the manufacture of ink,printing ink,paint,plastic ,and as rubber reinforcing agent. High quality and Best market price for ...