Let me introduce Shandong Aona Chemical Co.,Ltd ,which is a manufacturer of carbon black N220/N330/N550/N660ˇWe also offer Zinc Oxide. we are in carbon black exporting for 6 years, and received great repution for our high quality and competitive price passing ISO9001:2000,ISO14001:2004 certificate. Mobilephone::86-15806372350 Fax:86-(0)632-7711709 Phone : 86-0632-7782003-81 Email: jifeng860502@yahoo.com.cn ...