Copperplate paper, also known as printing coated paper. Apply a layer of white coating on the surface of the base paper, which is processed by super calendering. It is divided into single-sided and double-sided types, and the paper surface is divided into two types: glossy and textured. The surface of the paper is smooth, with high whiteness and excellent ink absorption performance. Mainly used for offset printing and gravure printing of fine wire printed products, such as high-end picture books, calendars, books and magazines.