Functions: 1 Automatic feeding for top sheet and bottom sheet 2 Frequency-converting but no-stop of the machine, the main electrical control components adopt imported famous brand products, which ensures the electrical control system correct and stable 3 Elastic front register positioning the bottom sheet does not exceed the top one the front-and-back distance between the top sheet and the bottom sheet can be adjusted. 4 Suitable for laminating bottom cardboard more than 300g/m2 with top paperboard , laminating paperboard with a/b/c/d/e flute corrugated cardboard, and laminating corrugated board with corrugated board. 5 When laminating flute b corrugated cardboard and its length is more than 800mm the lengthened movable pressing part is optional. When laminating paperboard with paperboard, pre-adjustable pressing part is optional.