Taking Guangdong as an example, we have enumerated the following rules between the price of grey board and the prices of raw materials in different grades of paper mills.
The thickness of the paper is measured by micrometer, the thickness of paper is measured under certain area of pressure. The general pressure is 980 thousand PPA.
Water-based ink, ink stability, bright color. Water-based ink by water-based resin, soluble in water, Can dissolve in water, can dilute with water, The advantage is do not need organic
The opening number represents the size of a book or paper sheet, and is based on full-sheet paper. It is cut or folded into small pieces of the same size, which is called the number of copies or the number of opening.
Copy paper, also called Sydney paper, is a paper that requires high strength and whiteness. Most paper mills in China use imported wood pulp to make copy paper,