It is suitable for the surface materials of various materials to be coated with different materials panel. The hot roll coating reactive hot melt adhesive (PUR) automatically aligns the surface material with the substrate on the surface of the sheet, and hydraulically presses back to achieve the bonding effect in an instant. The glue has the characteristics of high adhesion, cold resistance, high temperature resistance, waterproof and environmental protection. The production line has a high automation function, and the two can operate the production. The enterprise does not have to be insufficient for personnel, and has low efficiency and troubles.