Paper printing industry is generally industrial paper divided into two kinds of positive degree
and generous, generous souvenir sheets of: 1194 × 889 (mm),Positive degree Sheet: 1092 × 787 (mm).
Because of the relatively large piece of paper, about one square meter, and therefore it is very in
convenient to use, so often cut a piece of paper inside the line to use, this is what we call open,
how open is a full paper is divided into how many parts ʱ?? For example, we often say that the 4 open, in fact,
is a piece of paper divided into four parts, is open 8 8 parts, 16 open, 32 open, 64 open and so on and so on.
Each open specifications from different paper types are divided into two types, such as generous open
ing 4, n ° 4 open. 4 generous open specifications: 596 × 445 (mm), is the degree, compared with 4 open: 545 × 393 (mm)
, in addition, there are generous opening 8, n ° 8 open ......