N330 is the most widely used type high wear-resisting of carbon black, the wear-resisting performance than super wear-resistant series black is a bit poor, but better than black. The slot method, Used to tire surface, pulp, sidewall and all kinds of rubber industry products. This product is a kind of carbon, can give good strong stretched rubber, resisting avulsion intensity, abrasion and elastic. Using this product by use of the rolling loss (loss) in behind only N300 series black N351 greater than any other species are small and scattered in the rubber, and the pressure of a performance is good, is suitable for various kinds of synthetic rubber and natural rubber.