32K size: 210mm×148mm; That is, the length is 2 10mm and the width is 148 mm.
Size of 48K:184mm× 98mm; ; That is, the length is 184mm and the width is 98 mm
Size of 64K:144mm×105mm; That is, the length is 144mm and the width is105 mm.
128K size: 65mm * 95mm；; That is, it is 95mm long and 65mm wide.
Introduction to paper opening
The specification of paper refers to that after the paper is made, it is trimmed and cut into a certain size. In the past, the size of paper was expressed by the number of "open" (for example, 8 open or 16 open, etc. ). At present, China adopts international standards, which stipulate that the format and specifications of paper are represented by A0, A 1, A2, B 1, B2, etc. According to the standard, the proportional relationship between the width (represented by X) and the length (represented by Y) of paper is X: Y =1:N. ..
The width dimension of C0 is 9 17mm× 1297mm, and the width area is1.2m2; The format specification of copy paper only adopts A series and B series.
If A0 paper is split in half along the length direction, it becomes A 1 specification; If A 1 paper is split along the length direction, it becomes A2 specification, and so on, it becomes A8 specification; B0 paper is also divided into B8 standard according to this method.
Extended data:
A4 paper size
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.
This standard was first incorporated into DIN (DIN 476) in 1922 by Weimar * * and China. Although some formats were developed in France at the same time, they were later forgotten. ф o 216defines three groups of paper sizes: a, b and c: Group C paper size is mainly used for envelopes.
The aspect ratio of group A paper size is √ 2: 1, and then the nearest millimeter value is rounded. A0 is defined as paper with an area of one square meter and an aspect ratio of √ 2: 1. The following paper sizes, such as A 1, A2, A3, etc. , are defined as the paper with one digit missing is folded in half along the long side and then discarded to the nearest millimeter value.