We are manufacturer and exporter of carbon black, zinc oxide and caustic soda in China.We supply all series of carbon black WITH WET PROCESS : N220, N219, N330, N339, N375, N660, N550, N234, N774 and zinc oxide(from 99% to 99.8%) and caustic soda(96%,99%). Welcome your kindly inquiry and contact：seavenliu@yahoo.com.cn.