This is jackie chu, marketing manager of Shandong Aona Chemical Co,Ltd ,a leading manufacturer and exporter of carbon black and zinc oxide in China. We can supply many grades of carbon black such as: N234, N330, N339, N375, N550, N660, N774 and so on. Our carbon black products are widely used for rubber products, tires, auto parts, cable,plastic, black masterbatch, xonveyor belts,printing ink etc. Our zinc oxide range from 90% to 99.8% .It is sold to over 30 countries in the world. Our factory is located in the south of Shandong province,near Qingdao port. Our total capacity is more than 50, 000 tons annually. We have passed the ISO9001--2008, ISO14001--2004 and REACH for EU countries, If you have any requirement, please feel free to contact us for details, we shall be glad to offer you our best price and service. Your quicky reply is highly appreciated. Thanks & regards Jackie Chu email:aonachemical at gmail com , msn:cqlfly at msn com ,cell phone:+86 13963286821