... paper correction, pre-folding, bottom locking, folding GK-650CA/780CA folder gluer for 4 folds and bottom-lock Introduction1. Feeding: Automatic and ... of feeding, paper correction, pre-folding, bottom locking, folding, full pressing, press and so on.Feeding section:1. 5 independent ... 2-board structure2.Two modes for pressing belt speeding: 1/Auto: set distance between boxes, pressing belt speed is the ...