As a manufacturer of carbon blacks for rubber industrial, sqc offers various carbon black,furnace black with customerized design and intergration service for the oem/odm market.our main products is:n220,n330,n550,n660,n774.we accumulates more and more experience on oem/odm service to help our customers to build their own brand value professionally. Depending on high quality of products and good commercial reputation, our products have been exported to many countries such as spain, bulgaria, egypt, iran, malaysia, saudi arabia, ethiopia, etc. The company has got good reputation from the customers; some of them are world famous companies and become their long-term and stable supplier. The aim of the company is: quality is the first, customer is the highest, offer good service to you wholeheartedly. Spring queen international co.,ltd. Skype: hello--world