We are Zaozhuang Xinyuan Chemical Industry Co.,Ltd. We can product carbon black n220,n 330 and so on. We are also the only one manufacture in China who can product the composite nano-carbon black. It is prodcted by the most advanced teconology from American. Its low prices maks it to be a good replacement of the reinforcement material. The composite nano-carbon black based on the different formulati*** in rubber products can replace all or part of N330 and N660 carbon black.