... flexo corrugated printing slotting machine 1,working speed:0-60pieces/min 2,max.size of feeding paper:1470x2900mm semi-auto flexo corrugated printing slotting machine1,New ... down.6,Auto lubrication of the aears with oil.7,Four knives adjustment,with length,width adjustment upper and lower knife ... thicknessmm4.5/64.5/64.5/6 Semi-Auto Flexo Corrugated Printing Slotting Machine