(1)preheating only needs 3 minutes. (2)Hot and cold laminating for different usage. (3)Uses the digital double demonstration, the microcomputer processing electric circuit control, the control precision high, the operation is simple. (4)Uses the high quality material, the non- noise electrical machinery, the movement steady, the service life is longer. (5)According to the different thickness diaphragm request may the free attemperation, the speed. (6)Uses measured the warm spot leads the way and short-circuits the protection circuit to cause to control warm is safer.