Parts for printing presses, in particular for web-fed offset printing for newspapers and illustrations, for sheet-fed offset printing, for digital printing, namely, printing couples, printing cylinders and imaging heads for printing forms; and printing form and printing blanket makeready and mounting machine parts, namely, pneumatic, mechanical and robotic arms and levers for printing plate and printing blanket holding, mounting and changing, printing rollers in the nature of printing plate and printing blanket fixing rollers, and clamping bars; machines for feeding printing material into and delivering printing material from printing presses; transporting machines for printed products, namely, lifting installations for the transport of printed products, and paper roll changing and moving installations; storage machines for printed products, namely, machine operated platforms capable of elevation above ground level and used for storage, sheet paper catching and sheet paper storage machines; addressing machines for printed products; packaging machines for printed products; plate-bending machines; accessories for printing presses, namely, printing plates; feeding apparatus machine parts for plates and printing plates of printing presses, in particular, automatic changing apparatus for changing plates and printing plates of printing presses