___it is suitable to a large scope of packing material such as pp, po and pe. ___high automatic level, the whole equipment is adjusted by a electronic means, including vacuum processing and heating processing, so and cooling. ___ the running is electric and pneumatic. the machine has apposite devices to comply with safety regulations. ___ high sealing precision; we use electrical sealing control so that the quality can be assured much well than others. ___ it is very convenience to repair for every spare part can be removed and installed easily.