Buy Discount Carbon Black N550 with Free Sample made in China. Harvest Enterprise is Carbon Black N550 manufacturer and supplier in China. Generally the raw material of carbon black is Ethylene Tar and Coal Tar. Generally Ethylene own the high quality aromatic hydrocarbon ,and also the asphalt content is much. Comparing with Ethylene Tar, The coal tar own much high quality aromatic hydrocarbon and lower content of asphalt. In China, Most the carbon black raw material is coal Tar.