Tongke is a leading China N220 carbon black manufacturers, suppliers and factory. Adhering to the pursuit of perfect quality of products, so that our N220 carbon black have been satisfied by many customers. Quality raw materials, high performance and competitive price are what every customer wants, and that's also what we can offer you. Of course, also essential is our perfect after-sales service. If you are interested in our N220 carbon black services, you can consult us now, we will reply to you in time!