Offset printing machine
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Offset press, a type of circular press. According to the principle of indirect printing, the printing plate is a printing machine that prints images on a substrate by means of a blanket transfer roller. According to different printing conditions and basic printing methods, they can be divided into sheet-fed automatic offset printing presses and web-fed high-speed rotary offset presses; they can be divided into single-color machines, double-color machines, four-color machines, and six-color machines depending on the number of printing colors. Machines and eight-color machines, etc.; according to different print paper, can be divided into four boot, boot, full Zhang Quan and double Quan Zhang machines. The difference with other rotary printing presses lies in the difference in the type of printing plate, and the addition of a blanket cylinder and a wet device. Offset products are generally copied artwork.