Tongke is a leading China granular activated carbon filtration manufacturers, suppliers and factory. Adhering to the pursuit of perfect quality of products, so that our granular activated carbon filtration 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 granular activated carbon filtration services, you can consult us now, we will reply to you in time!