Grit product is also called grit ware and grit pottery. It is a creation between pottery and porcelain. The grit product produced by Yangquan city, Shanxi province is fine in texture, uniform in thickness, beautiful in appearance and pure in color. Its inner wall is light green, smooth and a bit oily, and the exterior shines with a shiny silver luster. It is not only famous in Shanxi province, but is also quite influential in many parts of the country.