... pressure electric elements,liquid level sense equipment and photoelectric control system,they can make sure each part of the machine ... time saving and low noise.With air suction paper conveying system,save paper stacking time and improve the running speed. ... paper A, B, C, D, E corrugated board, thickness ≤ 8mm A, B, C, D, E corrugated board, thickness ≤ 8mm Overlaying precision 2-5mm adjustable ...