Imported white cardboard in the domestic market occupies a considerable market share, but domestic white cardboard has the potential to squeeze into this part of the market. After China's accession to the WTO, although the import tax rate of white cardboard has declined, because white cardboard is high-value paper (generally normal price is USD950--1100/MT), the absolute amount of import tax is still high, even if domestic white cardboard All imported wood pulp is used. Because the tariff of wood pulp is zero, domestic white cardboard has certain advantages in price.
　　 White cardboard is generally divided into: blue and white single-sided copperplate paperboard, white copperplate paperboard, gray-bottom copperplate paperboard.
　　 Ivory board (white cardboard)
　　 Single or multi-layer bonded paper made entirely of bleached chemical pulp and fully sized, suitable for printing and product packaging, generally at a basis weight of 150 g/m2 or more. This type of paper jam is characterized by high smoothness, good stiffness, a neat appearance and good formation. Can be used for business cards, menus or similar products.
　　 In the past, some people planned to use quantitative basis as the basis: paper, cardboard and cardboard; white cardboard has high requirements on whiteness, whiteness of A and so on is not less than 92%, B is not less than 87%, and C is not lower than 82%.
　　 White cardboard is a kind of white cardboard made of thick and solid pure wood pulp. It is calendered or embossed. It is mainly used for printing and printing substrates. It is divided into A, B and C grades. At 210-400g/m2. Mainly used for printing business cards, invitations, certificates, trademarks, and packaging and decoration.
　　 White cardboard is a kind of paper that is firm and thick. In the past, it was intended to be based on quantitative basis: paper, cardboard and cardboard.
　　 In the early years, the white thick paper with a basis weight of about 200g/m2 was smoothed on the Shanghai shopping mall. After calendering, the stiffness was higher. Some people also called thin cardboard.