Carbon black N330 N220 N550 N660 1:black powd or granular pignent 2. rubber industry 3.tyres cable tape carbon blacKN220 N330 N550 ... N6602N220 We supply diverse model carbon black, for example N220, N330, N550, N660, N339 ... , etc. 1. Type: n220 ,n330,n550.n660.2. ...