Product descriptions from the supplier FORDIA® UNDERPACKING PAPER FOR THE CALIBRATION OF PRINTING CYLINDERS IN OFFSET PRESSES 0.15mm Precision Underpacking: Specifically designed for Heidelberg GTO 46 offset presses to bridge the gap between 0.1mm and 0.2mm adjustments. Standard 50-Sheet Pack: Optimized quantity for professional pressrooms, offering consistent pressure balance across bulk printing runs. Anti-Slip Surface: Specialized matte coating prevents sheet displacement