Sodium naphthalene sulfonate formaldehyde, also called SNF/PNS/FND/NSF, is light brown powder. And this product has three types, they are SNF-A, SNF-B, SNF-C. As a kind of high efficient concrete superplasticizer, Kingsun SNF superplasticizer is widely used in the cement and construction industry. For example, it has a strong dispersion of cement particles and high water reducing-rate on concrete. Adding polynaphthalene sulfonate into concrete can not only save cement and improve the workability of concrete but also speed the construction progress up. This product has a good effect on preparing variety concretes, such as large flow concrete. Besides that, it can improve the performance of concrete. Naphthalene Formaldehyde Sulfonate has obvious technical effects and economic benefits.