Cardboard
The general name for paper that is between the thickness of paper and paperboard. Divided into white cardboard and rice paper (ivory cardboard) and other two categories. The difference is that the former is white and the latter is colored. Paper is tight, strong and flexible. Mostly used for cards, postcards, invitations, etc.
Double-sided white cardboard
Also known as ivory paperboard. The surface and back are both white, bleached wood pulp as raw material, the paper is strong and not easy to bend. It is commonly used as a menu for hotels and restaurants, as well as for hanging boards in exhibition halls.
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