Sales of various chemical additives to the company, Carbon Black, Rosin Ester, OH POLYMER, DIMETHYL SILICONE FLUID, FUMED SILICA ... additives to the company, Carbon Black, Rosin Ester, OH POLYMER, DIMETHYL SILICONE FLUID, FUMED SILICA , AND SO ON.If you have this need ... , please contact us, look forward to your letter. Carbon Black