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American stationery size and China a4

The size of American stationery is 2 16 mm *279 mm, which is 8.5 inches x 1 1 inch. The size of China a4 is 21* 29.7 cm (210 mm × 297 mm).

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A4 paper is defined by ISO 2 16, and its specification is 21* 29.7 cm (210 mm× 297 mm). Most countries in the world use this international standard for paper size.

In the United States and Canada, they still use the letter, legal and administrative document size system. In the United States, A4 paper is not commonly used, but writing paper size is generally used. The specification is 2 16 mm *279 mm, that is, 8.5 inches x 1 1 inch, which is mainly used in the United States, Mexico, Canada and other countries.

According to the size, paper formats are usually divided into three types: large format, medium format and small format. For 787× 1092 paper, 12 format is large format, 16 ~ 36 format is medium format, and 40 format is small format, but books with mainly characters are generally medium format.

Folio shapes are rectangles with different proportions except 6 quarts, 12 quarts, 20 quarts, 24 quarts and 40 quarts, which are suitable for books with different properties and uses.