The international standard size of 40% discount is: 380mm*2 10mm. In the process of 40% discount printing, the size can be expanded by 386 mm * 2 16 mm for the convenience of batch cutting and printing operation. In recent years, with the development of printing industry, some four-fold pages more suitable for advertising industry have appeared, such as portable, compact and exquisite, with the size of 2 10mm*285mm, and there are also rich contents to increase the publicity effect.