The suitable solid state has the regular object the packing. For example: The biscuit, the chocolate, the aluminum model the medicine board, the daily necessities, the hardware components and so on. Characteristic: 1st, the high sensitivity light eye control bidirectional track, the trademark design localization is accurate. 2nd, the computer screen demonstrated each kind of data is clear. 3rd, frequency conversion stepless speed regulation. 4th, uses warm reveals the PID intelligence to control the meter, the temperature control accurately, suits the many kinds of packing material, and the seal artistic is reliable.