Company Description
Shijiazhuang HengSiKai Company manufactures the black carbon , maily applied to various rubber products such as tyres, rubber overshoes, cable, seal ring, tape etc. Moreover they can be applied to such relevant industries .
Our products are N220, N234, N326, N330, N339, N375, N539, N550, N660 etc. Besides, we can manufacture various special hard and soft black carbon according to customers' demands.