Carbon black A.Used for rubber industry B.Good quality C.mainly as pigment D.powder or granular Carbon black N220 N330 N550 N6602N220 We supply diverse model carbon black, for example N220, N330, N550, N660, N339, etc. 1. Type: n220 ,n330,n550.n660.2. Cas no:1333-86-43. Place of origin: china4. Standard: GB 3778-20035. Form: black granule or powder6.Process: wet or dry process7. Usage: maily ...