The domestic standard is 78. 1 cm times 108.6 cm, and the international standard is 84.4 cm times116.2cm.. Paper specifications are divided into wide and straight. The fully opened paper cut from the middle is 2 quarts, a quarter is 4 quarts, and so on. The full open size of large positive paper is 78 1mm times 1086mm, and the full open size of large and wide paper is 844mm times 1 162mm.

2 quarts: 530 times 760 mm.

3 quarts: 362 times 781mm.

4 Quarts: 390 by 543 mm

6 quarts: 362 by 390 mm

8 quarts: 27 1 times 390 mm.

16: 195 times 271mm.

Universal paper format

Forward opening method refers to the method of unidirectional opening of the whole paper, that is, vertical or horizontal opening method. Segmentation method refers to the method of separating the whole paper horizontally and vertically. Segmentation method is usually used in the case that it is difficult to cut the paper by forward opening method.

In addition to the straight opening method and split opening method, there is also a mixed opening method, also known as nested opening method and irregular opening method, that is, the whole paper is cut into small papers with more than two format sizes, which has the advantages of making full use of the paper format and using the paper as much as possible.