Calcium Carbide, Graphite Electrode, Cac2 manufacturer / supplier in China, offering Carbon Black N121 with Fine Particle Size and Large Specific Surface Area, Suitable for Multiple Fields Such as Rubber and Plastics, Stable Quality N330/N550/N660 Granular Carbon Black, with Strong Dispersion Properties and Versatile Applications., Industrial-Grade Carbon Black N762, High Filling Capacity, Cost-Effective, Stable Supply and so on.