... , pneumatic paper driving, stepless speed adjustment, and web tension control.4. Equipped with Roots Type vacuum ... s more safety and easier to feed the web.9. Key parts regularly lubricating automatically.10. 1-2 ... unitPneumatic dot slittingPrintingFlexographic printing, 1-2 colorLubricating systemAutomatic key parts regular lubricatingDriving systemTiming belt, chainCounting systemAlternate stack ...