... price ISO9001:2000 certificare We supply diverse model carbon black, for example N220, N330, N550, N660, N339, etc. 1. Type: ... or dry process7. Usage: maily applied to various rubber products such as tyres, rubber overshoes, cable, seal ring, tape etc. Moreover they ... , precipitated or fumed silica has been used as a substitute for carbon black in reinforcing ability. Silica-based fillers are also ...